Apple's App Store has more than 2.2 billion apps. Consumers spend as much as 80% more on iOS apps compared to Android ones. Such a tendency led to $38.5 billion in revenue, $26.5 billion of which was paid off to iOS developers for 2017.
However, iOS is loved by developers from all over the world not only for financial reasons. The simplicity of development and minimalistic approach which company sticks to also make a difference. There are no fragmentation problems as the lineup of Apple devices is relatively small and all of them have a unified UI.
To build an iOS app, you'll need to hire iOS app developer working with Objective-C or Swift in Xcode or any other IDE. In this guide, we also cover the vital points you need to learn before you hire iOS programmers.
iOS developer roles and responsibilities
Many fail to understand the full scope of responsibilities that lay on shoulders of iOS developers. In fact, the borders of iOS developer responsibilities go beyond writing code. They take part at every stage of app development from planning and design aspects (wireframing screens, building UI) to testing and publishing the ready-made app to the App Store. In other words, an iOS developer turns the specifications of your mobile application into a working and user-friendly product.
Design awareness is what you should pay a due attention to while looking for iOS developer candidate. The point is, the care for design isn't something that only mobile designers responsible for since developers are also in charge of transferring good experience to final users. That's why among iOS developer key skills should be an experience with both UI/UX, understand their principles, and, of course, be good at programming in Swift or other languages.
Junior, middle, and senior iOS developersTypically, the versatility of developers depends on their working experience. Respectively, the more projects a developer has worked on, the more complex and diverse tech problems he/she can solve.
In the IT industry, the skills of programmers are divided into three levels: junior, middle, and senior.
Junior iOS developer
This is the entry level iOS developer. In companies, junior developers most commonly work alongside their more experienced colleagues to improve their knowledge and enhance skills. It usually takes a few years for junior developers to level up.
Middle iOS developer
After working on a variety of complex projects, developers move from beginners to a more advanced level that's called middle or mid level iOS developer. Here they have more independence in terms of working on projects.
Senior iOS developer
Senior iOS developer is an experienced developer that has seen tons of code and released dozens of apps. Typically, such developers not just code and design an app, but deal with testing, integration of APIs, and security matters.
Taking into account everything mentioned above, you're willing to choose whether your project requires less or more experienced iOS software engineer. The key factor here is your budget, as salaries for each level may vary dramatically. The project complexity also matters since the junior developer will barely cope well with a large project having a complicated business logic behind.
iOS developer skill set
The iOS developer technical skills largely depend on your project. However, the general skills needed for iOS developer should look something like this:
- Proficient with Swift or Objective-C programming language;
- Knowledge of Xcode IDE;
- Experience with APIs like Cocoa Touch and UIKit;
- Understanding of RESTful APIs;
- Understanding of UI and UX design standards;
- Knowledge of Apple Human Interface Guidelines;
- Experience with Metal or OpenGL;
- Advanced knowledge of code versioning tools like Git;
- Knowledge of Core Data framework.
According to the StatCounter statistics, the number of mobile web users has surpassed the number of desktop web users. This goes to show how many people use their mobile devices to browse the internet. According to Gartner prediction, the revenues from mobile app will surge to $77 billion in 2017. The question remains, how will you make your app stand out from millions of other mobile apps? The answer is by following the best mobile app development practices. In this article, you will learn about seven best mobile app development practices.
Know Your Target Audience
The first question that you need to ask yourself is who will use this app? Understand how your user will interact with your app and which feature they want in your app. If you want your mobile app to be a roaring success then you should know your audience like a palm of your hands. The better you know your audience, the better change you have to give them what they are looking for. Not only does this makes your job a whole lot easier but it also pave the way for delivering a perfect user experience for your app users.
Have a Design Strategy
Having a design strategy is critical for success especially when you are developing a cross platform mobile application. When you are designing a cross platform app, multiple activities are underway simultaneously. Therefore, if you do not have a sound strategy then there are bright chances that you mess up your mobile app. List down key functionality of your mobile app as well as future components on paper so that you can easily minimize the risk of emerging problems at different stages of app development cycle. Involving users into the design process will provide you with valuable feedback that will take you closer to designing a perfect mobile app for your users.
Develop Most Important Features First
Many app developers take the adventurous route of creating the most difficult feature of the app first. As a result, they fail to launch the app before the deadline and their mobile app exceeds budget. The best way to go about it is to focus on essential and core features and develop them first then move on to create features that are more complex. You will have to lay a solid foundation with core features and then take it from there. App developers can work on additional features and launch them in next releases or as a plug in when necessary but should focus on critical features of an app.
Make App Security Your Priority
According to Now Secure mobile security report, 35% of mobile communication, both voice and data are not encrypted. Moreover, most of the mobile communication takes place through wireless medium. This makes it a soft target for hackers and more vulnerable than other wired communication devices. Make mobile app security your priority, identify and fix any vulnerability in your mobile app before releasing the mobile app for users. Keep the user confidential and private information safe so that users are comfortable in using your mobile app.
Test, Test, Test
Despite putting a lot of emphasis on testing the mobile app before putting it up for downloads, a survey revealed that, less than 50% of companies test their mobile app for security while 33% do not even bother to test their mobile app, which is quite alarming. It is better to test your mobile app at each stage of the app development cycle but if you cannot do it, at least test the app thoroughly at the end and make sure that there are no glitches left before uploading your mobile application on app store. One bad user experience can prove to be very costly so it is better to pass your mobile app through comprehensive testing processes to prevent such issues.
Establish a Feedback Mechanism
Last but certainly not the least, is to incorporate feedback into your mobile application. Provide user with a medium through which they can give their feedback and share their opinion with you. Users can prove to be a vital resource if you allow them to give feedback as they experience crashes, bugs and errors that you might have missed. This makes it easy for app developers to make improvements in the future. Ask users about which features they want to see and add them in the future releases to satisfy them.
At the end of the day, it usually comes down to the user experience and satisfaction that will decide the fate of your app. If you know about any other mobile app development best practice that can make a big difference to your mobile app development efforts, then feel free to share it with us in comments section below.
What is new?
• Update Center
• To-do lists (with reference to the website)
• Subscription to the regular publications
• Integration into Twitter
• Editing photos from the gallery
• Opening camera from the Lock screen
• Wi-Fi sync
• Reading mode in Safari
• Support for the multitasking gestures on the iPad 2
• Split pad on the iPad
Reminding: here are supported devices:
• iPhone 3Gs
• iPhone 4
• iPad 2
• iPod Touch 3g
• iPod Touch 4g
The first part can be found here.
The software part
Overpatching of the application took only a week for the iPad. The main time was spent on rework of the user’s interface. Dimensions of screen resolution of the iPad and iPhone are different, so if we have not considered this when designing the interface - we have a problem (especially, if we have numerous screens).
If we lead 1024 without changing the dimensions to 480, then the resulting image will be 480x360, so we get 40 extra pixels vertically. One simple solution is to leave empty space above and below. I do not like this approach. Since I only have had three screens (almost everything is in the vector), I have reworked the source materials for expansion of 1024x768 and has written a utility that moving in 480x320, and cutting (shifting) the specific parts from top, bottom or both sides that I do not need.
I completely rewrote the dialog of posting to Twitter, the old was not designed for the iPad.
Transferring a binary file into universal format took exactly one click. So, select a target “Upgrade this target to ipad”.
I used this code below to find out if the iPad is software-based or not:
BOOL isPad ()
# ifdef UI_USER_INTERFACE_IDIOM
return (UI_USER_INTERFACE_IDIOM () == UIUserInterfaceIdiomPad);
In October 2008, I have found out at an ordinary meeting with two friends that they are involved in the developing of games for the iPhone. At that time I already had almost completed shareware project for the Windows. I was inspired by the desire to port it for the iPhone, I started working in this direction.
Create and adapt the development tools for the Windows platform without the purchasing of Mac device and related the development tools. Mac purchase was postponed until a full understanding of how it works. Almost finished project and tools for it were for the Windows, so I decided to do all for the Windows. I started implementing this idea after I spent a few days searching the internet.
Step one - Setting up the environment and compiler for the Windows, or to be more exact for the Cygwin
I had a dream to write the maps a long time ago. Convenient maps that do not require an access to the Internet with the actual data, fast and work on any device. After I worked as an engineer in Google Maps that dream only became stronger, and at some point it turned into the particular actions.
If it's interesting, I'll write something as I was leaving Google Zurich, and at the same time all around did the square eyes:) and then I with me friends were writing a project for almost a year.
The result of all this was the off-line maps for the iPhone and iPad released on April 12, soon there will be ready versions for the android, Mac and Windows.
The idea is as follows. You are going to go to another country with some purpose, for example to relax, and take along your trusty android or iPhone / iPad, MacBook or laptop with Windows, or all together.
Before you travel, you install the application and quickly download the desired map of the country.
United States and Russia, of course, will be slower, but, for example, a map of Belarus is 45 MB, Switzerland is 58 MB (soon the next version will be released, there will be all the countries compressed for a quarter).
Yes, the program is free.