# App Store keyword and subtitle checker

> Type or paste your App Store text and see it counted against Apple's limits as you go, with the keyword rules Apple writes down. Nothing leaves your browser.

Use it here: https://ipip.fyi/tools/app-store-keyword-checker (it runs in your browser, nothing is uploaded).

## What it does

It counts every field the way App Store Connect does and checks your keywords against the rules on Apple's own pages: commas with no spaces, no repeats, no words already in your app name, no category names or the word "app", and nothing two characters or shorter. When it can tidy the list for you, it gives you a cleaned copy to paste.

## Apple's limits

| Field | Limit |
| --- | --- |
| App name | 2 to 30 characters |
| Subtitle | 30 characters |
| Keywords | 100 bytes |
| Promotional text | 170 characters |
| Description | 4000 characters |
| What's New | 4000 characters |

Keywords are counted in bytes, not letters. Plain English letters take one byte each, while letters with accents, other alphabets and emoji take two to four, so a list in another language can fill up sooner than it looks.

## What it can't tell you

It counts and compares words. It can't tell whether people search for a keyword, or how your app ranks for it. Apple also says not to use other apps' names, trademarks you don't own or celebrity names, and only you can check that.

## Questions

**How long can an App Store app name be?**

At least 2 and at most 30 characters. The subtitle can also be up to 30 characters.

**Is the App Store keyword limit 100 characters or 100 bytes?**

Apple's App Store Connect help says up to 100 bytes. For plain English that is the same as 100 characters, but accented letters, other alphabets and emoji take more than one byte each.

**Should I put spaces after the commas in my keywords?**

No. Separate keywords with commas only. A space after each comma spends a byte you could use for another word.

**Should I repeat my app name in the keywords?**

No. Apple says your app can already be found by its name and your company name, so repeating them wastes room.

**Does promotional text help search?**

Apple says promotional text does not affect search. You can change it at any time without a new version, so it suits news and offers.

## Sources

- [Apple: App information](https://developer.apple.com/help/app-store-connect/reference/app-information/app-information/)
- [Apple: Platform version information](https://developer.apple.com/help/app-store-connect/reference/app-information/platform-version-information/)

Updated November 15, 2026.

Source: https://ipip.fyi/tools/app-store-keyword-checker