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Free ASO tools for the App Store & Google Play
Check your App Store Optimization score and generate keyword-optimized listings for iOS and Android. See your score free — no sign-up needed.
App Store ASO Checker
Drop your Apple App Store URL and get an instant 0–100 ASO score. We grade your iOS listing against the factors Apple actually ranks — title, subtitle, keyword field, ratings and screenshots — and tell you the highest-impact fixes first.
Open toolGoogle Play ASO Checker
Drop your Google Play Store URL and get an instant 0–100 ASO score. We grade your Android listing against the factors Google Play actually ranks — title, short description, long description, keywords, ratings and screenshots — and surface the highest-impact fixes first.
Open toolApp Store ASO Generator
Turn a short brief about your app into a fully keyword-optimized Apple App Store listing. Our AI ASO generator writes your iOS title, subtitle, 100-character keyword field and description — built around the search terms your app should actually rank for.
Open toolGoogle Play ASO Generator
Turn a short brief about your app into a fully keyword-optimized Google Play listing. Our AI ASO generator writes your Android title, 80-character short description and 4,000-character long description — built around the search terms your app should actually rank for.
Open toolThe basics
What is App Store Optimization (ASO)?
App Store Optimization (ASO) is the practice of improving a mobile app's store listing so it ranks higher in App Store and Google Play search and converts more of the people who see it into installs. It's often called "app store SEO" — the same idea as ranking a web page on Google, applied to the two app stores.
Strong ASO comes down to two things: metadata (your title, subtitle or short description, keywords and description, which determine the searches you rank for) and conversion (your icon, screenshots, ratings and copy, which turn searchers into installs). The free tools below score and improve both — separately for the Apple App Store and Google Play, because each store ranks listings differently.
Side by side
App Store vs Google Play ASO
| Factor | App Store | Google Play |
|---|---|---|
| App title limit | 30 characters (indexed) | 30 characters (indexed) |
| Second field | Subtitle — 30 characters (indexed) | Short description — 80 characters (indexed) |
| Dedicated keyword field | Yes — hidden, 100 characters | No |
| Description indexed for search | No | Yes — full 4,000 characters |
| Built-in A/B testing | Custom Product Pages | Store Listing Experiments |
| Localization | Each locale indexed separately | Each locale indexed separately |
| Primary creative | Screenshots & app preview video | Screenshots, feature graphic & video |
| Paid search platform | Apple Search Ads | Google App Campaigns |
Frequently asked
Free ASO tools, answered
What is ASO (App Store Optimization)?
App Store Optimization (ASO) is the practice of improving a mobile app's store listing so it ranks higher in App Store and Google Play search and converts more visitors into installs. It covers your title, subtitle or short description, keywords, screenshots, ratings and description — the elements each store uses to rank and sell your app.
Are these ASO tools free?
Yes. You can check your App Store or Google Play ASO score for free with no sign-up — your 0–100 score and grade appear instantly. A free account unlocks the full per-check report with AI-written fixes and the listing generators.
What is the difference between App Store and Google Play ASO?
Apple indexes the title, subtitle and a hidden 100-character keyword field for search, but not the description. Google Play indexes the title, the 80-character short description and the full 4,000-character long description. So the same app needs a different metadata strategy on each store, which is why we offer separate tools for each.
Do I need an account to check my ASO score?
No. The ASO score checkers show your score, grade and category breakdown for free with no sign-up. You only need a free account to see the full per-check fix list or to generate an optimized listing.
What is the best free ASO tool?
The best free ASO tool is one that scores your listing against the factors each store actually ranks, shows specific fixes, and can generate optimized metadata within each store's character limits. ReachFront's free ASO checkers and generators do exactly that for both the App Store and Google Play.
The full ASO toolkit, free to start
Score tracking, AI-written fixes, keyword research and competitor monitoring for both stores.
Get started free