Free ASO tools

Two small checkers for the last step before you submit a listing. They run in your browser, need no account and send nothing anywhere.

• App Store metadata checkerName and subtitle (30 characters), keyword field (100 UTF-8 bytes), repeated words across fields and a clean comma list.
• Google Play listing checkerTitle (30), short description (80) and full description (4,000), title policy checks and how often each target phrase appears.

Both apply the same rules as ASOMaster, the desktop app for App Store and Google Play optimization that also measures which words are worth the space.