App Store and Google Play character limits.

Every metadata field on both stores has a hard limit, and App Store Connect and Play Console reject anything longer. Here they are side by side, with what each field is for.

App Store limits

App Store Connect metadata limits
FieldLimitIndexed for search
App name30Yes, the strongest signal
Subtitle30Yes
Keywords100Yes, hidden from users
Promotional text170No, but can change without a new version
Description4,000No
What's New4,000No

Google Play limits

Google Play Console listing limits
FieldLimitIndexed for search
App name30Yes, the strongest signal
Short description80Yes
Full description4,000Yes
Release notes500No

What this means for ASO

On the App Store, the name, subtitle and keyword field are the only text Apple searches. That is 160 characters in total, so every character counts and no word should appear twice across the three.

On Google Play there is no keyword field. The title, short description and full description are all indexed, so work your main keywords naturally into the description.

Check your text before you paste it

Use the free character counter to check a listing against these limits, and to spot repeated words in your App Store keyword field.

Questions

How long can an App Store app name be?

30 characters. The subtitle is another 30.

How many characters is the App Store keyword field?

100 characters, with keywords separated by commas. Spaces after commas count, so leave them out.

What is the Google Play short description limit?

80 characters. The full description can be up to 4,000.

Does the App Store description affect search ranking?

No. Apple searches the app name, subtitle, keyword field and in-app purchase names, not the description. Google Play does index the description.