Cocoa Touch (iOS) vs Fat-Free: What are the differences?

What is Cocoa Touch (iOS)? The Cocoa Touch collection of frameworks includes everything needed to create iOS apps. The Cocoa Touch layer contains key frameworks for building iOS apps. These frameworks define the appearance of your app. They also provide the basic app infrastructure and support for key technologies such as multitasking, touch-based input, push notifications, and many high-level system services.

What is Fat-Free? PHP micro-framework designed to help you build dynamic and robust Web applications - fast. Fat-Free Framework makes it easy to build entire Web sites in a jiffy. With the same power and brevity as modern Javascript toolkits and libraries, F3 helps you write better-looking and more reliable PHP programs.

Cocoa Touch (iOS) and Fat-Free can be primarily classified as "Frameworks (Full Stack)" tools.

"Backed by Apple" is the primary reason why developers consider Cocoa Touch (iOS) over the competitors, whereas "Open source" was stated as the key factor in picking Fat-Free.

Fat-Free is an open source tool with 2.3K GitHub stars and 443 GitHub forks. Here's a link to Fat-Free's open source repository on GitHub.