Avoid this 10 common mistakes as an iOS Developer

4 min readMar 8, 2023

Hi everybody! After a long pause, finally got a bit time to share another important article with you. Even though the title of the article seems like it is only for iOS Devs, in general those mistakes applying almost everybody.

Before we start, I want to ask you a question (as always 😉):

Did you read my previous articles? If not, then here they are:

Every dev makes mistake. So if you are beginner, do not worry and stress when you make mistake. This article will help you to avoid 10 common mistakes because in this article, we will discuss ten common mistakes that every iOS developer can make and how to avoid them.

Not Testing on Actual Devices:
One of the most common mistakes that iOS developers make is not testing their applications on actual devices. Many developers rely solely on the simulator provided by Xcode, which can lead to overlooking issues that only manifest on actual devices i.e. There might be some constraint issues that happens only on actual device. It is essential to ensure that the application’s functionality is tested on a range of real devices.
Poor Memory Management:
Memory management is a crucial aspect of iOS development, and it is common for developers to make mistakes in this area. Failing to manage memory correctly can lead to memory leaks, crashes, and other performance issues. Therefore, it is essential to learn the basics of memory management in iOS development and use the tools provided by Xcode to detect memory issues.
Not Optimizing for Performance:
Performance is a critical aspect of any application, and iOS development is no exception. It is common for developers to overlook performance optimization, resulting in slow and laggy applications. It is crucial to enhance the application’s performance by implementing methods such as asynchronous programming, lazy loading, and caching.
Not Following Human Interface Guidelines:
Apple has strict guidelines for the user interface design of iOS applications, known as the Human Interface Guidelines. It is common for developers to overlook these guidelines, resulting in poor user experience and rejection from the App Store. Following these guidelines is essential to ensure that the application’s interface design adheres to Apple’s standards and is consistent with their requirements.
Not Using Auto Layout:
Auto Layout is a powerful tool in iOS development that enables developers to create responsive and adaptive user interfaces. It is common for developers to overlook this tool and use hard-coded frames and constraints, resulting in UI issues on different screen sizes. That is why you should learn and use Auto Layout to ensure the application’s user interface adapts to different devices and screen sizes.
Not Properly Handling Errors:
Errors are an inevitable part of any software development process, including iOS development. It is common for developers to overlook error handling, resulting in crashes and instability in the application. Properly handling errors is crucial and can be achieved through the utilization of try-catch blocks, error handling functions, and error logging to identify the underlying cause of the issue.
Not Implementing Accessibility Features:
Accessibility features are essential in iOS development to ensure that users with disabilities can use the application. It is common for developers to overlook accessibility features, resulting in exclusion of these users from using the application. It would be nice if you implement accessibility features such as VoiceOver, Dynamic-Type and Accessibility Inspector.
Not Following Version Control Best Practices:
Version control is crucial in any software development process, including iOS development. It is common for developers to overlook version control best practices, resulting in issues such as code conflicts and loss of code changes. Keep your branches clear and write clear messages in each of your commits.
Not Paying Attention to Security:
Security is an essential aspect of any application, and iOS development is no exception. It is common for developers to overlook security concerns such as data storage, network communication, and user authentication. Paying attention to security concerns and use encryption, secure communication protocols, and user authentication mechanisms is a must.
Not Refactoring Code:
Refactoring code is a crucial part of any software development process, including iOS development. It is common for developers to overlook code refactoring, resulting in code that is difficult to read and maintain. Use SwiftLint, check warnings and resolve them to improve application’s maintainability, readability and scalability. Believe me, it will become much easier to add or fix features later.

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Avoid this 10 common mistakes as an iOS Developer

Written by Mammadowr