Free ASO Tool
App Store Character Counter
Check character limits for your App Store title, subtitle, keywords, and description in real-time. Improve any field with AI.
Last updated: March 20, 2026
Fully indexed for search. Include your strongest keyword.
Indexed for search. Complement your title — don't repeat keywords.
Comma-separated, no spaces after commas. Not visible to users.
Can be updated without a new app version. Not indexed for search.
Not indexed on iOS (only Google Play). But users read it.
Live Character Count
Real-time counters with color-coded warnings as you approach each limit
AI Improve Button
One-click AI optimization for any field — tighter copy, better keywords, within the limit
All 5 Fields
Title, subtitle, keyword field, promotional text, and description — all on one page
How it works
Enter your app name, subtitle, keywords, and description
See remaining characters in real-time with color-coded warnings
Hit the Improve button on any field for AI-optimized copy
The App Store Character Counter is a free ASO tool that tracks character usage across all five iOS metadata fields in real time: the 30-character app name, 30-character subtitle, 100-character keyword field, 170-character promotional text, and 4,000-character description. It flags fields that exceed limits and includes an AI improve button that rewrites over-limit text while preserving meaning.
App Store metadata character limits
| Field | iOS limit | Google Play | Indexed? | Notes |
|---|---|---|---|---|
| App name / Title | 30 chars | 50 chars | Yes (both) | Most visible text in search results. |
| Subtitle / Short description | 30 chars | 80 chars | Yes (both) | Shows directly below the app name. iOS indexes every word. |
| Keyword field | 100 chars | n/a | Yes (iOS only) | Hidden from users. Comma-separated, no spaces (spaces count). |
| Promotional text | 170 chars | n/a | No | iOS only. Updatable without submitting a new app version. |
| Description | 4,000 chars | 4,000 chars | Google Play only | Not indexed on iOS. Affects conversion on both stores. |
| What's New / Release notes | 4,000 chars | 500 chars | No | Shown to returning users considering the update. |
Explore More Tools
Everything you need to optimize your app store presence
No account required • Your data is not stored
Frequently Asked Questions
What is the App Store title character limit?
The App Store app name (title) has a 30 character limit. This is fully indexed for search, so include your strongest keyword. The title is the most visible text in search results.
What is the App Store subtitle character limit?
The App Store subtitle has a 30 character limit on iOS. On Google Play, the equivalent "short description" allows up to 80 characters. The subtitle is indexed for search and appears directly below your app name.
What is the App Store keyword field character limit?
The iOS App Store keyword field has a 100 character limit. Keywords should be comma-separated with no spaces after commas. This field is not visible to users but is fully indexed by Apple for search.
What is the App Store description character limit?
The App Store description has a 4,000 character limit. On iOS, the description is NOT indexed for search (only Google Play indexes it). However, users read it before downloading, so it directly affects conversion rates.
What is the promotional text character limit?
The iOS App Store promotional text has a 170 character limit. Unlike other fields, promotional text can be updated without submitting a new app version. It is NOT indexed for search but appears at the top of your listing.
Metadata Ready?
Now create App Store screenshots that match your optimized listing. Describe your app and get finished screenshots.
Generate Screenshots Free