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 📈
Radix Icons - A crisp set of 15×15 icons. Open source.
BetterAppIcons for iPhone - Create your unique app icon today.
Drawcon - Draw your own app icons
AppScreens - Screenshot creator for the Apple App and Google Play Store. Generate designer quality, pixel perfect screenshots for your iOS and Android apps at the same time