Free tools
Get your app ready for the stores.
Icons, listings and screenshots, checked against Apple's and Google's rules. They're free, there's no sign-up, and your files stay on your device.
App icon resizer
Turn one image into every iOS, Android and Expo icon, with store checks and a live look at it on a real home screen.
Resize an icon
Kerb: Running Club
Plan group runs with friends
App Store preview
See your listing on the App Store and Google Play before you submit, and catch what would get it rejected.
Preview a listing
Screenshot splitter
Cut one wide design into a seamless set of store screenshots at the exact size each store asks for.
Split an image