shotsnapp - Create beautiful device mockup presentation
5play.ru - 5play.ru enables you to download highly-rated Apps and Games for Android devices.
Base UI Sketch Framework - Huge set of everything you need to design and prototype
Altstore - A home for apps that push the boundaries on iOS
Sketchapp TV - Create Awesome iOS Apps With Sketch
iOSGODS! - iOSGODS!