What is the App Store keyword character limit?

The keyword field holds up to 100 bytes per language. In English that is 100 characters; letters with accents use two bytes and many scripts, such as Japanese or Hindi, use three.

How long can an App Store app name be?

Between 2 and 30 characters. The subtitle, shown under the name, can also be up to 30 characters.

Should keywords be separated by commas and spaces?

Commas only. Apple asks for terms separated by commas with no spaces, so the space is not wasted. Spaces inside a phrase are fine.

Does this tool save or send what I type?

No. Everything is counted in your browser. Nothing is sent to us or stored, and it is gone when you close the page.

App Store character counter

Write your name, subtitle, keywords and description against Apple’s real limits, with keywords counted in bytes the way App Store Connect counts them, and checks for wasted keyword space.

Name and subtitle: 30 characters each
Keywords: 100 bytes

Counter

Everything is counted in your browser. Nothing is sent or stored.

App name0 / 30

Indexed for search. At least 2 characters.

Subtitle0 / 30

Shown under the name everywhere. Indexed for search.

Keywords0 / 100 bytes

Comma-separated, no spaces after commas. Never shown to anyone.

Promotional text0 / 170

Changes any time without a new version. Does not affect search.

Description0 / 4000

Plain text. The first sentence is what people read without tapping more.

What’s New0 / 4000

Required for every version after the first.

In-app purchase name0 / 35

Shown on your product page when you promote the purchase.

In-app purchase description0 / 55

One short line on what people get.

The limits

Every App Store text limit

From Apple’s App information and platform version information references, and Apple’s product page guidance for in-app purchases.

Field	Limit	Note
App name	30 characters	At least 2; indexed for search
Subtitle	30 characters	Indexed for search
Keywords	100 bytes	Comma-separated; each term longer than two characters
Promotional text	170 characters	Does not affect search
Description	4,000 characters	Plain text, no HTML
What’s New	4,000 characters	Required after the first version
In-app purchase name	35 characters	For promoted purchases
In-app purchase description	55 characters	For promoted purchases
Review notes	4,000 bytes	Seen only by App Review

How to choose what goes in these fields is in App Store keyword research and the ASO checklist.

FAQ

Character limit questions

Not covered here? Write to hello@pull.house.

The keyword field holds up to 100 bytes per language. In English that is 100 characters; letters with accents use two bytes and many scripts, such as Japanese or Hindi, use three.

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