An iOS online testing service used to test mobile applications, it allows to invite users to test apps and collect valuable feedback before releasing apps, allows to receive remote logs, crash reports, etc.


A dependency injection framework for Objective-C and Swift applications. A useful design pattern that allows for an application to be decoupled and it simplifies testing. Often used for IoC.


A lightweight and modular front-end framework that provides the necessary infrastructure to construct and manage iOS and tvOS apps' user interfaces. UIkit gives you a comprehensive collection of HTML, CSS, and JS components which is simple to use, easy to customize and extendable.


A complete developer toolset for creating apps for Mac, iPhone, iPad, Apple Watch, and Apple TV. Brings UI design, coding, testing, debugging, and submitting to the App Store all into a unified workflow.


A testing framework that allows to create and run unit tests, performance tests, and UI tests for your Xcode project. Tests assert that certain conditions are satisfied during code execution, and record test failures if those conditions are not satisfied.


A framework for creating hybrid applications and interfaces for Apple Watch and Apple iPhone. Often used to configures visual elements of watchOS apps. The WatchKit catalog is written entirely in Objective-C.

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