The App Store subtitle sits under the app name. Apple limits it to 30 characters. Use that small line to tell a new visitor what the app helps them do. Clarity usually beats cleverness.

Start with a useful outcome: “Plan meals faster,” “Track shared expenses,” or “Practice calm breathing.” Avoid repeating the app name word for word and avoid claims such as “best” unless you have a clear basis.

Match the subtitle with the first screenshot and first lines of the description. The user should see one promise in a clearer and more detailed form.

Use this in your next ASO review

Turn the advice above into one small, traceable change. A simple review keeps your listing accurate and makes it easier to learn what helped.

  1. Open the current App Store Connect entry for your app and copy the app store subtitle material you want to check.
  2. Compare it with the current product behavior, supported locales, and the source linked below.
  3. Draft one improvement, record the reason, and validate every field limit or submission rule that applies.
  4. Ask a person to approve the draft before it changes a live listing.