About Apple Developer Program



Moreover Finding out Swift and Objective-C, persons who would like to turn into iOS developers ought to discover the following capabilities to get ready for just a developer career, As outlined by Udacity.

Develop applications that scale over and above the boundaries of a conventional Display screen and reap the benefits of a totally a few-dimensional interface controlled by a user’s eyes, fingers, and voice.

For an extensive idea of how our classes can profit your workers, check out the business remedies we offer. Find out more about our customized programs at Coursera for Business here.‎

That will help These serious about the field better understand how to interrupt right into a job in mobile enhancement, we compiled the most important information and methods.

iOS eighteen will allow apple iphone buyers to put app icons any where on the house Display screen grid, In accordance with resources knowledgeable about development from the program update.

Membership offers the equipment, resources, and assist you need to develop and deliver software program and providers to end users throughout the world on about 2 billion Lively Apple products.

Xcode also includes a entire set of process code modules — known as frameworks — for creating your program.

Leverage Apple’s tightly built-in hardware, application, providers, and abilities to generate practical and engaging activities. Enable your users to subscribe to Distinctive material, expertise your application in new methods using augmented fact, build clever characteristics with on-product machine Discovering, and rapidly obtain items within your application with Apple Fork out, sign in for your application and Web site with their Apple ID, get things carried out with just their voice working with Siri, plus much more.

The kinds of spots that seek the services of people with a background in iOS app growth are every type of corporations that make computer software merchandise for customers. Normal destinations could possibly be education and learning firms, suppliers, retail businesses, know-how firms, management consultancies, and Other people.

Enroll as a person or a corporation in more than 220 nations or locations and receive an Apple-confirmed Developer ID.

For Aisyah Widya Nur Shadrina, 23, her working experience on the Developer Academy in Jakarta, Indonesia, introduced her to Individuals resources. In the academy, Shadrina and her all-Females team utilized the entrance-facing digital camera go here and device learning on apple iphone to generate Hearo, an app which can translate signal language into voice and text, supplying a far more seamless method to communicate with close friends who're deaf. The team was subsequently picked for Apple Entrepreneur Camp in 2020, in which they received code-amount guidance from Apple specialists and engineers, facilitating important improvement to in-application navigation and user experience. This 12 months, Shadrina and her team will attend Apple’s Around the globe Developers Convention practically.

Apple states which the Developer Strap is helpful for "accelerating the event of graphics-intensive apps and online games." It is intended to supply the identical audio expertise as being the typical Correct Audio Strap, so it can be utilized for each...

When you buy by way of one-way links on our website, we may well gain an affiliate commission. Below’s how it works.

Increase your expertise and site talent in iOS application growth creating far more complex and able apps. And, function with information from the server and check out new iOS APIs that permit for A great deal richer app ordeals — such as exhibiting big collections of data in more info many formats.

The iOS App Developer Diaries



Passkeys: Passkeys are upcoming-technology credentials that happen to be safer, much easier to use, and meant to operate in applications as conveniently since they do on the internet.

Depending on your particular needs, we could provide you with the mix of experience you will need and do the job together with your individual procedures to be able to improve your workflow. In the final 3 yrs we experienced a 85%+ normal retention fee with our groups.

one WeatherKit is accessible to developers by means of each native Swift and REST APIs, and includes 500,000 API calls a month included using an Apple Developer Program membership. Developers who will need additional should be able to acquire additional tiers of support appropriate during the Apple Developer application starting off this fall.

Networking: Almost each individual application interacts with the world wide web in a way; thus, iOS developers need to understand how to send and receive information from your network, which can be carried out by way of JavaScript Object Notation (JSON).

Apple now announced that it options to carry its up coming Swift University student Obstacle in February 2024, marking The 1st time the company has provided Superior observe to present students time to prepare.

A scene can be a program-level object that manages your app’s interface. Undertake scene objects as part of the app’s core infrastructure, and use them to adjust your app’s actions at crucial periods.

Provide awesome experiences with stunning image good quality and immersive seem. You could develop abundant applications and game titles that glimpse awesome on the large display, make the most of Continuity Camera to make the lounge a stage, customise your app’s interface, provide great operation, and a lot more.

BrainStation’s iOS Developer vocation guide is meant that may help you get the 1st steps towards a valuable vocation in iOS Progress. Continue reading for an overview from the cell advancement capabilities it is best to study, iOS coaching over here alternatives, occupation paths, how to become an iOS Developer, and much more.

Dwell Text: Developers can now give customers the chance to seize textual content straight from pictures and films observed within their applications, or by way of a live digital camera feed. Stay Text is processed on gadget for greater person privateness and performance.

Continue reading to learn how It is done. In many years earlier when Apple has introduced a major new running method update, the very first wave of betas has formally only been accessible to download if you site web are a spending subscriber to A...

Measure user engagement, marketing campaign overall performance, and monetization with Application Retail store Connect, which includes information and facts you won’t find everywhere else and involves no specialized implementation.

Compose the code you should update sights and controls, improve their configuration, and communicate adjustments to other portions of your app. For your walkthrough of working with UIKit to make apps, look at the Starting out with These days tutorial.

Bohon also famous that Swift is interoperable with Objective-C, which is a typical-goal, item-oriented programming language depending on C that included OOP paradigms for the language by way of object messaging. Aim-C was the main programming language utilized by Apple for iOS just before Swift was launched.

No matter if website you happen to be just starting out or already have some expertise, we provide several iOS Application Growth programs intended to suit your desires. Curated from leading educational institutions and field leaders, our variety of iOS Application Improvement classes aims to provide quality instruction for everybody—from unique learners seeking private growth to company groups wanting to upskill.

Exploring the Frontier 2024: Open Source iOS Apps and Their Impact

Introduction to Open Source iOS Apps

Welcome to the fascinating world of open-source iOS apps, where creativity is unrestricted and innovation has no boundaries! Open source has become a revolution unto itself in our ever changing tech world, empowering both users and developers. Together, we will investigate the ever-changing landscape of open source iOS applications and see how they will affect the digital landscape in 2024. Come explore the intriguing world where cutting-edge technology, community, and cooperation come together to define the future of mobile applications.

The Growth of Open Source iOS Apps in Recent Years

The world of mobile development has changed in recent years due to the tremendous growth of open source iOS apps. The collaborative nature of open source is being embraced by developers worldwide, encouraging creativity and community-driven projects. The rise of open source initiatives has made it easier for people with a variety of backgrounds to contribute their knowledge and ideas, democratizing the process of creating apps.

The emergence of services such as GitHub has given developers a central location to exchange code, work together on projects, and enhance pre-existing frameworks. The speed at which apps are developed has increased due to this interconnection, which has also encouraged industry transparency and knowledge exchange. Because of this, users can now choose from a greater variety of excellent apps that suit a range of requirements and tastes.

In addition, the availability of open source tools and materials has reduced entry barriers for would-be developers, enabling them to gain knowledge through experimentation and practical experience. The abundance of open source iOS apps benefits the developer community by encouraging a culture of ongoing learning and development, as well as enhancing the App Store ecosystem.

Advantages of Open Source iOS Apps for Developers and Users

Open source iOS apps offer a plethora of advantages for both developers and users. Open source projects give developers access to a cooperative setting where they may exchange knowledge, pick up skills from others, and give back to the community. This promotes creativity and quickens the development process.

Developers can save time while creating fundamental functions by starting with open source code. This frees them up to concentrate more on developing distinctive features that improve the apps. Furthermore, open source applications frequently receive helpful community support in the form of updates, bug patches, and insightful feedback.

For users, open source iOS apps promote transparency and trust. Anyone may see the source code, so users can check the app's security and make sure their data is handled appropriately. Furthermore, because developers collaborate and peer review continuously, open source applications generally have fewer defects.

In essence,...

1. Economical: Open source iOS apps can be obtained from internet repositories like GitHub or GitLab and are free to use. This removes the need to pay for pricey commercial software licenses.

2. Customization: Since open source code is publicly available, programmers are free to alter and adapt it to suit their own requirements. This results in extremely customized and personalized apps that can accommodate a wide range of user needs.

3. Support from the community: The open source community is renowned for its eagerness to lend a hand and for its active participation. Together with other community members, developers can exchange ideas, ask for help, and work together to solve problems and enhance the overall functioning of the program.

4. Quicker development time: By having access to pre-written code, developers can avoid having to spend time creating fundamental features from the ground up. They can now concentrate on incorporating special features and enhancing the user experience as a whole.

5. Constant updates: A lot of people usually contribute to open source projects, and they are always trying to make the coding better. This guarantees that customers always have access to the most recent and dependable app possible. Additionally, faults are promptly found and repaired, and new features are frequently added.

6. Compatibility: Open source open source ios apps projects have a higher degree of compatibility with other software and systems since they frequently adhere to industry standards. As a result, using the app with other tools and platforms is made easier through easier interaction and interoperability.

7. Enhanced security: Open source iOS apps are more safe than their closed-source equivalents since any possible vulnerabilities or security issues can be swiftly found and repaired by the community because open source code is available to anyone.

8. Freedom to experiment: Without any limitations, developers can freely experiment with various concepts, features, and designs when creating open source iOS apps. This encourages creativity and innovation, which produces a wider variety of distinctive apps that consumers can select from.

All things considered, both developers and users can gain greatly from using open source iOS apps. Their promotion of teamwork, openness, economy of scale, and ongoing enhancement makes them a desirable choice for anyone developing or utilizing top-notch mobile applications.

Popular Open Source iOS Apps and Their Impact

Because they provide a wide range of alternatives to suit different requirements and preferences, open source iOS apps have completely changed the way we interact with our smartphones. Well-known open-source applications like Signal, which enable users to communicate without jeopardizing their data, have come to be associated with messaging security and privacy.

In terms of productivity, initiatives such as Nextcloud raise the bar for file-sharing and collaboration by enabling teams to operate together across several platforms. By participating in these programs, developers can hone their abilities and gain knowledge from collaborative contexts.

OpenMHealth and other open source health tracking apps, which offer customized insights into wellness data, are comforting to those who are concerned about their health. Through emulators like Provenance, game aficionados explore the realm of entertainment and relive classic gaming experiences on contemporary iOS devices.

Popular open source iOS apps have an impact that goes beyond their usefulness; they encourage an inclusive and transparent community-driven approach to app development. Every addition enhances the ecosystem and helps to shape mobile technology for years to come.

Challenges and Controversies Surrounding Open Source iOS Apps

There are some issues and disputes that consumers and developers may run into when it comes to open source iOS apps. Security is a major worry since bad actors could exploit any weaknesses in the code because it is publicly accessible. Data security and privacy are called into doubt by this.

Another issue is compatibility with proprietary software. Integrating open source apps with closed systems can sometimes be tricky due to conflicting licenses or dependencies. It requires careful navigation to ensure seamless functionality without infringing on any legal boundaries.

Moreover, maintaining open source projects long-term can pose a challenge. For updates and problem fixes, developers rely on community support, which isn't always dependable or constant. Over time, this may cause development to stall or even cause initiatives open source ios apps to be abandoned.

While open source iOS apps offer numerous benefits, these challenges highlight the complexities involved in their creation and sustainability.

The Future of Open Source iOS Apps

It's evident that open source iOS apps are expected to develop and have an even bigger influence in the future. These apps will probably get more complex and adaptable as long as developers around the world continue to work together, giving consumers access to a greater variety of answers for their daily problems.

The incorporation of AI technology into open source iOS apps is one trend to keep an eye on. This technology improves user experiences by offering tailored recommendations and cutting-edge capabilities. In addition, given the increased worry over cyber dangers, we should anticipate seeing more security measures put in place to safeguard user data and privacy.

The development of virtual reality (VR) and augmented reality (AR) technologies could also have a big impact on how open source iOS apps develop in the future by giving consumers new ways to engage with digital material. The opportunities in this industry are genuinely limitless as long as innovation keeps pushing forward progress.

Conclusion: Why You Should Keep an Eye on the Frontier of Open Source iOS Apps

As technology advances, open source iOS apps are becoming more and more common and significant. The benefits of cooperation, creativity, and accessibility that these apps offer are being enjoyed by both developers and consumers. Supporting the open-source movement on iOS platforms will lead to the development of even more innovative apps in the future that will satisfy a wide range of requirements and tastes.

For what reason, then, should you monitor the development of website for open source ios apps open source iOS apps? The answer is straightforward: it heralds in a new era of inventiveness, community-driven development, and limitless potential in the open source ios apps developer realm of mobile applications. Keep an eye out for future developments as developers utilize open source initiatives on iOS devices to redefine possibilities, push boundaries, and question conventions. Accept this thrilling voyage into unknown waters where prospects await producers and customers alike.

Exploring the Frontier 2024: Open Source iOS Apps and Their Impact

Introduction to Open Source iOS Apps

Welcome to the fascinating world of open-source iOS apps, where creativity is unrestricted and innovation has no boundaries! Open source has become a revolution unto itself in our ever changing tech world, empowering both users and developers. Together, we will investigate the ever-changing landscape of open source iOS applications and see how they will affect the digital landscape in 2024. Come explore the intriguing world where cutting-edge technology, community, and cooperation come together to define the future of mobile applications.

The Growth of Open Source iOS Apps in Recent Years

The world of mobile development has changed in recent years due to the tremendous growth of open source iOS apps. The collaborative nature of open source is being embraced by developers worldwide, encouraging creativity and community-driven projects. The rise of open source initiatives has made it easier for people with a variety of backgrounds to contribute their knowledge and ideas, democratizing the process of creating apps.

The emergence of services such as GitHub has given developers a central location to exchange code, work together on projects, and enhance pre-existing frameworks. The speed at which apps are developed has increased due to this interconnection, which has also encouraged industry transparency and knowledge exchange. Because of this, users can now choose from a greater variety of excellent apps that suit a range of requirements and tastes.

In addition, the availability of open source tools and materials has reduced entry barriers for would-be developers, enabling them to gain knowledge through experimentation and practical experience. The abundance of open source iOS apps benefits the developer community by encouraging a culture of ongoing learning and development, as well as enhancing the App Store ecosystem.

Advantages of Open Source iOS Apps for Developers and Users

Open source iOS apps offer a plethora of advantages for both developers and users. Open source projects give developers access to a cooperative setting where they may exchange knowledge, pick up skills from others, and give back to the community. This promotes creativity and quickens the development process.

Developers can save time while creating fundamental functions by starting with open source code. This frees them up to concentrate more on developing distinctive features that improve the apps. Furthermore, open source applications frequently receive helpful community support in the form of updates, bug patches, and insightful feedback.

For users, open source iOS apps promote transparency and trust. Anyone may see the source code, so users can check the app's security and make sure their data is handled appropriately. Furthermore, because developers collaborate and peer review continuously, open source applications generally have fewer defects.

In essence,...

1. Economical: Open source iOS apps can be obtained from internet repositories like GitHub or GitLab and are free to use. This removes the need to pay for pricey commercial software licenses.

2. Customization: Since open source code is publicly available, programmers are free to alter and adapt it to suit their own requirements. This results in extremely customized and personalized apps that can accommodate a wide range of user needs.

3. Support from the community: The open source community is renowned for its eagerness to lend a hand and for its active participation. Together with other community members, developers can exchange ideas, ask for help, and work together to solve problems and enhance the overall functioning of the program.

4. Quicker development time: By having access to pre-written code, developers can avoid having to spend time creating fundamental features from the ground up. They can now concentrate on incorporating special features and enhancing the user experience as a whole.

5. Constant updates: A lot of people usually contribute to open source projects, and they are always trying to make the coding better. This guarantees that customers always have access to the most recent and dependable app possible. Additionally, faults are promptly found and repaired, and new features are frequently added.

6. Compatibility: Open source projects have a higher degree of compatibility with other software and systems since they frequently adhere to industry standards. As a result, using the app with other tools and platforms is made easier through easier interaction and interoperability.

7. Enhanced security: Open source iOS apps are more safe than their closed-source equivalents since any possible vulnerabilities or security issues can be swiftly found and repaired by the community because open source code is available to anyone.

8. Freedom to experiment: Without any limitations, developers can freely experiment with various concepts, features, and designs when creating open source iOS apps. This encourages creativity and innovation, which produces a wider variety of distinctive apps that consumers can select from.

All things considered, both developers and users can gain greatly from using open source iOS apps. Their promotion of teamwork, openness, economy of scale, and ongoing enhancement makes them a desirable choice for anyone developing or utilizing top-notch mobile applications.

Popular Open Source iOS Apps and Their Impact

Because they provide a wide range of alternatives to suit different requirements and preferences, open source iOS apps have completely changed the way we interact with our smartphones. Well-known open-source applications like Signal, which enable users to communicate without jeopardizing their data, have come to be associated with messaging security and privacy.

In terms of productivity, initiatives such as Nextcloud raise the bar for file-sharing and collaboration by enabling teams to operate together across several platforms. By participating in these programs, developers can hone their abilities and gain knowledge from collaborative contexts.

OpenMHealth and other open source health tracking apps, which offer customized insights into wellness data, are comforting to those who are concerned about their health. Through emulators like Provenance, game aficionados explore the realm of entertainment and relive classic gaming experiences on contemporary iOS devices.

Popular open source iOS apps have an impact that goes beyond their usefulness; they encourage an inclusive and transparent community-driven approach to app development. Every addition enhances the ecosystem and helps to shape mobile technology for years to come.

Challenges and Controversies Surrounding Open Source iOS Apps

There are some issues and disputes that consumers website for open source ios apps and developers may run into when it comes to open source iOS apps. Security is a major worry since bad actors could exploit any weaknesses in the code because it is publicly accessible. Data security and privacy are called into doubt by this.

Another issue is compatibility with proprietary software. Integrating open source apps with closed systems can sometimes be tricky due to conflicting licenses or dependencies. It requires careful navigation to ensure seamless functionality without infringing on any legal boundaries.

Moreover, maintaining open source projects long-term can pose a challenge. For updates and problem fixes, developers rely on community support, which isn't always dependable or constant. Over time, this may cause development to stall or even cause initiatives to be abandoned.

While open source iOS apps offer numerous benefits, these challenges highlight the complexities involved in their creation and sustainability.

The Future of Open Source iOS Apps

It's evident that open source iOS apps are expected to develop and have an even bigger influence in the future. These apps will probably get more complex and adaptable as long as developers around the world continue to work together, giving consumers access to a greater variety of answers for their daily problems.

The incorporation of AI technology into open source iOS apps is one trend to keep an eye on. This technology improves user experiences by offering tailored recommendations and cutting-edge capabilities. In addition, given the increased worry over cyber dangers, we should anticipate seeing more security measures put in place to safeguard user data and privacy.

The development of virtual reality (VR) and augmented reality (AR) technologies could also have a big impact on open source ios apps how open source iOS open source ios apps apps develop in the future by giving consumers new ways to engage with digital material. The opportunities in this industry are genuinely limitless as long as innovation keeps pushing forward progress.

Conclusion: Why You Should Keep an Eye on the Frontier of Open Source iOS Apps

As technology advances, open source iOS apps are becoming more and more common and significant. The benefits of cooperation, creativity, and accessibility that these apps offer are being enjoyed by both developers and consumers. Supporting the open-source open source ios apps movement on iOS platforms will lead to the development of even more innovative apps in the future that will satisfy a wide range of requirements and tastes.

For what reason, then, should you monitor the development of open source iOS apps? The answer is straightforward: it heralds in a new era of inventiveness, community-driven development, and limitless potential in the realm of mobile applications. Keep an eye out for future developments as developers utilize open source initiatives on iOS devices to redefine possibilities, push boundaries, and question conventions. Accept this thrilling voyage into unknown waters where prospects await producers and customers alike.

Open Source iOS Apps: Driving Progress and Innovation in Mobile Technology 2024

Introduction to Open Source iOS Apps

Unveiling the power of open source iOS apps is like discovering a treasure trove in the vast sea of mobile technology. From enhancing user experiences to fostering innovation, these collaborative creations are revolutionizing the way we interact with our devices. Join us on a journey through the realm of open source iOS apps as we explore their benefits, impact on progress and innovation, and what the future holds for this dynamic ecosystem in 2024 and beyond. Strap in as we delve into the exciting world where creativity meets code!

Benefits of Using Open Source iOS Apps

Open source iOS apps offer a range of benefits that contribute to the growth and advancement of mobile technology. These apps provide developers with access to the source code, allowing for customization and innovation. This fosters a collaborative community where ideas can be shared and improved upon.

Moreover, using open source iOS apps can lead to cost savings as businesses or individuals do not have to pay licensing fees. This accessibility promotes inclusivity and allows for more people to participate in app development.

Additionally, open source apps often undergo rapid updates due to the collective efforts of developers worldwide. This ensures that users receive timely bug fixes and feature enhancements, leading to a better overall user experience.

Embracing open source iOS apps opens up opportunities for creativity, collaboration, and continuous improvement in the ever-evolving landscape of mobile technology.

Top Open Source iOS Apps You Should Know About

Looking to explore the world of open source iOS apps? Here are some top picks you should definitely check out.

First up, we have Signal – a secure messaging app that prioritizes user privacy with end-to-end encryption. Whether it's texts, voice calls, or video chats, Signal has got you covered.

Next on the list is VLC for Mobile, a versatile media player that supports a wide range of audio and video formats. It's perfect for all your multimedia needs on the go.

For those interested in coding on-the-fly, look no further than Working Copy. This powerful Git client enables seamless collaboration and version control directly from your iOS device.

And let's not forget about Nextcloud – an all-in-one solution for file hosting, calendar syncing, and much more. Stay organized and connected wherever you are with this handy app.

With these top open source iOS apps in your arsenal, you'll be ready to take on any task with efficiency and ease.

How Open Source iOS Apps are Driving Progress and Innovation in Mobile Technology

Open source iOS apps play a crucial role in driving progress and innovation within the realm of mobile technology. By allowing developers to access, modify, and enhance the codebase of these applications, open source projects foster a website for open source ios apps collaborative environment where creativity thrives. This collaborative approach leads to the rapid evolution of features and functionalities that cater to diverse user needs.

The transparency of open source iOS apps also promotes accountability and security within the development community. With continuous peer review and feedback mechanisms in place, potential vulnerabilities can be identified and addressed promptly, ensuring a more robust end product for users worldwide.

Furthermore, the availability of open source iOS apps empowers aspiring developers to learn from industry experts, experiment with new technologies, and contribute back to the community. This cycle of learning and innovation fuels continuous improvement in mobile technology landscape.

The Future of Open Source iOS Apps in 2024 and Beyond

As we look ahead to the future of open source iOS apps in 2024 and beyond, the possibilities seem endless. With rapid advancements in technology and a growing community of developers, the landscape for these apps is poised for innovation like never before.

One exciting aspect is the potential for even greater collaboration among developers from around the world. This global exchange of ideas can lead to groundbreaking solutions that push the boundaries of what's possible on mobile devices.

Moreover, as more businesses recognize the value of open source software, we can expect to see an increase in enterprise-level applications being developed openly. This shift could revolutionize how companies approach app development and lead to a new era of creativity and efficiency.

With emerging technologies such as AI, AR/VR, and IoT gaining traction, open source iOS apps are well-positioned to integrate these cutting-edge innovations seamlessly. The future holds immense promise for those willing to explore new horizons and embrace change wholeheartedly.

Challenges and Limitations of Open Source iOS Apps

When it comes to open source iOS apps, there are certain challenges and limitations that developers may encounter along the way. One common challenge is maintaining security and ensuring data privacy. Since the source code is accessible to everyone, there's a risk of vulnerabilities being exploited if not properly monitored and updated.

Another limitation is the potential lack of comprehensive documentation for some open source projects. This can make it more challenging for developers to understand how the app works and implement changes or fixes effectively.

Additionally, compatibility issues with different devices or operating system versions can arise when using open source iOS apps. Ensuring seamless performance across various open source ios apps developer platforms requires thorough testing and optimization.

Furthermore, community support may vary depending on the popularity of a specific open source project. Developers may face difficulties in finding timely solutions or updates when encountering technical issues.

Despite these challenges, many developers continue to embrace open source iOS apps for their flexibility, cost-effectiveness, and collaborative nature in driving innovation within mobile technology landscape.

Conclusion

Open Source iOS Apps have undeniably played a pivotal role in driving progress and innovation in mobile technology. With the collaborative efforts of developers worldwide, these apps have not only provided cost-effective solutions but have also fostered creativity and advancement in the industry.

As we look towards the future of Open Source iOS Apps in 2024 and beyond, open source ios apps developer it is evident that they will continue to shape the landscape of mobile technology. Despite facing challenges and limitations, the community's dedication to open-source principles ensures that these apps will remain at the forefront of innovation.

In hire open source ios apps developer a rapidly evolving technological world, Open Source iOS Apps stand as a testament to what can be achieved through collaboration, transparency, and shared knowledge. By embracing this ethos, developers can drive progress, inspire creativity, and propel mobile technology into new frontiers for years to come.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15