sonarHow well is your app optimized?
Get an instant ASO audit of your app’s store listing. Title, description, visuals and reviews — scored and actionable. Free, no signup required.
- No signup
- App Store and Google Play
- Results in seconds
What the ASO checker audits
Each check has a fixed weight. A listing earns the full weight when it meets the bar below and partial credit when it gets close.
| Check | Points | Full points for |
|---|---|---|
| Title length | 15 | 25–30 characters (both stores cap titles at 30) |
| Title keywords | 10 | 4 or more words, so the title says what the app does beyond the brand |
| Description length | 10 | 2,000+ characters |
| Description quality | 10 | 3+ paragraphs, 3+ bullet lines, 100+ distinct words and a call to action |
| Screenshots | 15 | 5 or more |
| Rating | 15 | 4.5 stars or higher |
| Review count | 10 | 1,000+ ratings |
| Recent update | 10 | Updated in the last 30 days |
| Release notes | 5 | 50+ characters describing the latest version |
| Product page header | 5 | A header image is set (App Store only, an extra 5 points) |
The audit scores what the store shows, not where you rank. To see your position for specific keywords, use the free app rank checker. For a step-by-step walkthrough, read how to audit your app store listing, and for the full list of what to fix before and after launch, work through the ASO checklist.
ASO checker FAQ
What does an ASO checker check?
This ASO checker reads an app's public store listing and scores title length, keywords in the title, description length and structure, screenshot count, star rating, number of ratings, how recently the app was updated, and the release notes. Those nine checks are worth 100 points on both stores; App Store listings also get a 5-point check for the product page header. Every check comes with a tip on what to fix.
How is the ASO score calculated?
Each check earns part or all of its weight, for example 15 points for a title of 25–30 characters. The score is the points earned divided by the points available, scaled to 100. When the store doesn't expose the rating, the rating count or the App Store header, that check is left out instead of counting as zero. 80 or more reads as Excellent, 70–79 Good, 50–69 Needs work, 40–49 Poor and below 40 Critical.
Can I audit a competitor's app?
Yes. Paste any App Store or Google Play link, yours or a competitor's. The checker reads the listing as it appears in the US store, so localized titles and screenshots in other countries are not scored.
What doesn't the ASO audit cover?
It scores the listing, not your search results. It can't see which keywords you rank for, how popular they are, or how many store visitors install. Use the free rank checker for keyword positions, and App Store Connect or Google Play Console for conversion data.
Is the ASO checker free?
Yes. It needs no signup, works for both stores, and returns a result in seconds. Sonar's paid Indie plan ($29/month after a 7-day free trial) adds daily keyword rank tracking, keyword research and competitor monitoring for your apps.
Track your score over time
Monitor your ASO score daily alongside keyword rankings, competitor changes, and review sentiment.
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