Free ASO Tools

Lightweight utilities to polish your store listing — no signup required.

Character Counter

Check title, subtitle, and keyword field limits for iOS and Android.

Official screenshot dimensions for App Store and Google Play.

15-point checklist to ensure your listing is fully optimized.

Analyze keyword frequency and n-gram phrases in your description.

Calculate how many ratings you need to reach your target score.

Calculate what you keep after Apple and Google take their cut from in-app purchases.

Remove duplicates from your iOS keyword field and maximize all 100 characters.

Preview how your push notifications look on iOS and Android lock screens.

Format your Google Play description with bullets and separators, preview for both stores.

Official Apple App Preview video resolutions, formats, and requirements for every device.

Calculate commissions, developer fees, and net profit for Apple and Google.

See how your app icon looks on iOS and Android home screens, search results, and notifications.

Preview how your app looks in App Store and Google Play search results and detail pages.

Get an instant ASO score for your listing with specific improvement tips.

Check if your app name is available on the App Store and Google Play.

Explore negative reviews from any app to discover pain points and competitive opportunities.