App Icon Template - Royalty free app icon creator for iOS, OS X and Android
App Store Optimization (ASO) Checklist - ASO tools for increasing app installs & organic traffic 📈
Bjango App Icon Templates - App icon templates for PS, Ai, Sketch and Affinity Designer
AppScreens - Mockup professional-grade screenshots for your Apple and Android apps simultaneously. Designer quality, made simple.
MakeAppIcon - MakeAppIcon resizes and optimizes your icon designs into all formats needed for iOS and Android mobile app!
SplitMetrics - SplitMetrics is the A/B testing platform for App Store and Google Play page to discover the most converting icons, screenshots, video, etc.