Jazz Hands is a simple keyframe-based animation framework for UIKit. Animations can be controlled via gestures, scroll views, KVO, or ReactiveCocoa.
Jazz Hands is used extensively in IF and DO by IFTTT for iPhone and iPad, most famously in the app intro.
by Adobe Systems
PhoneGap is a free and open source framework that allows you to create mobile apps using standard...
by Radaee Studio / GEAR.it
PDF rendering engine on Android, iOS, Windows
by Mario Zechner
Desktop/Android/BlackBerry/iOS/HTML5 Java game development framework
USING SDKs?Learn how toProtect your Appfrom the Inside