ASO tool · App Store Connect limits

Metadata Checker

Draft your App Store listing against Apple's real character limits, and catch wasted keyword characters before you submit.

0/30

Indexed hardest by App Store search — lead with your strongest keyword.

0/30

Also fully indexed. Don't repeat words from the name — they don't count twice.

0/100

Comma-separated, no spaces. Words from your name/subtitle are already indexed — don't repeat them here.

0/170

Not indexed for search, but editable without a new build — use it for launches and offers.

0/4000

Not indexed on the App Store (unlike Google Play) — write it for humans and conversion.

Are your title, subtitle and keyword field legal and non-duplicated?

App Store Connect enforces hard character limits on the fields Apple actually indexes, and it will not tell you that you have wasted a third of your keyword field repeating a word already in your title. This checks both.

Paste the three fields, or load a live listing, and it reports what each is spending, what is duplicated across them, and what is left.

How it works

  1. 1Enter the app name, subtitle and keyword field — or pull them from a live app.
  2. 2Each is measured against Apple’s cap and shown with characters remaining.
  3. 3Terms repeated across fields are flagged, because Apple indexes the three separately and a repeat buys nothing.
  4. 4Keyword-field mechanics are checked: spaces after commas cost a character each and nothing else.

What it cannot tell you

  • It cannot read a competitor’s keyword field. Apple never exposes it — what is observable is which searches an app appears in.
  • It validates mechanics, not judgement. Whether a keyword describes your app well is not something a character count can answer.
  • No search volume is attached to anything here, because none exists publicly.

Frequently asked questions

How long can an App Store app name and subtitle be?

Apple allows 30 characters each for the name and subtitle, and 100 characters for the keyword field. This page measures against those caps and shows what you have left.

Should I repeat keywords between the title and the keyword field?

No. Apple indexes the name, subtitle and keyword field separately and combines terms across them, so a repeat spends characters on coverage you already have.

Do I need spaces after commas in the keyword field?

No — and each one costs one of your 100 characters for nothing.