Export your app icons and preview screenshots for App Store in Icon x Design.
Preview your app icon in Home Screen, export icons for Xcode with png format.
Preview your design with iPhone/iPad mockups, export preview screenshots for App Store.
Use single color or gradient color as background.
Add texts to preview screenshots.
I'm an indie developerany questions or suggestionsplease contactemail me via firstname.lastname@example.org, I'll try my best to improve the user experience.