ASO StudioTitle and subtitle checker
Two fields, 30 characters each, counted live the way App Store Connect counts them.
Both fields cap at 30 characters, and both are indexed for search: the words here are your strongest ranking signal, ahead of the keyword field. Spend them on words people actually type.
How long can an App Store title and subtitle be?
30 characters each, and both are indexed for search.
The app name and the subtitle each cap at 30 characters in App Store Connect. Both are searchable, and the title is the strongest ranking signal your listing has, so every character spent on filler is a keyword you did not rank for.
Do emoji and symbols count as one character?
This counter counts characters the way Apple's fields do, so a single emoji counts as one character even when it is stored as several bytes.
What should go in the subtitle?
Words people actually search that did not fit in the title. The subtitle is indexed like the title, so it is a second 30-character keyword slot wearing a marketing hat.
The next step
Now find out which words are worth these characters.
ASO Studio scores every term for demand and difficulty, so the field you just built targets searches you can actually win. The App Rating check is free and needs no account.