App store optimization tools
App store optimization tools for iOS & Android
Start with the free tools: an ASO score checker for each store, a Google Play rating checker, an app rank checker and the 2026 screenshot sizes, with no account needed. The rest of the toolkit, from listing generators to rank tracking, is part of ReachFront Max, which starts with 7 days free.
Free, no account
Free ASO tools: check your score, rating, and rank
Live checks you can run right now on any public listing, yours or a competitor's. No sign-up.
Google Play Keyword ResearchPaste your Play link for the 3 best keywords for your app: search demand, difficulty and where you rank today.Find my Play keywords App Store Keyword ResearchPaste your App Store link for the 3 best keywords for your iPhone app: search demand, difficulty and where you rank today.Find my App Store keywords App Store ASO CheckerPaste an App Store link for a 0 to 100 ASO score, a letter grade and the highest-impact fixes for your title, subtitle, screenshots and ratings.Check an App Store listing Google Play ASO CheckerScore a Play Store listing across the title, short and long description, keyword density, ratings and screenshots.Check a Google Play listing Google Play Rating CheckerAny app's live star rating, total ratings and 1 to 5 star breakdown, in up to 5 countries side by side.Check an app's rating App Rank CheckerWhere your app ranks in store search for a keyword, shown in the top 30 results for up to 5 countries.Check your keyword rank App Store Screenshot Sizes 2026Every iPhone, iPad and Google Play screenshot size, plus the 1024 x 500 feature graphic, in one table.See the screenshot sizes App Store Keyword Field GeneratorTurn keyword ideas into a 100-character iOS keyword field: commas, no spaces, no words your title or subtitle already has.Build a keyword field App Store & Google Play Character CounterLive counts for every listing field against each store's limit, plus Google Play title policy checks and shorter title options.Count your listing Keyword Density CheckerSee how often each keyword appears in your description, flag anything over 2.5%, and check your first 167 characters.Check keyword density
Included in Max
The full toolkit, in one workspace
Everything below comes with ReachFront Max: $19 a month, with the first 7 days free on monthly billing.
App Store ASO GeneratorTurn a short brief about your app into a fully keyword-optimized Apple App Store listing. Our AI ASO generator writes your iOS title, subtitle and description, plus a list of target keywords for your keyword field, built around the search terms your app should actually rank for.See the generator Google Play ASO GeneratorTurn 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.See the generator
Growth EngineFinds Reddit and X threads where people ask for an app like yours, ranks them by fit, and drafts replies you post yourself.Keyword ResearchDemand and difficulty for each keyword, and who ranks for it right now in any market, on both stores.Rank TrackerWhere your app ranks for every tracked keyword in every market, how far it moved, and your top keywords re-checked daily.ASO ScoreAround 30 weighted checks on any listing, an A+ to F grade, and a recommended fix for every failing check.Competitor WatchWatch up to 5 rivals per app and see what changed in their listings each week.Review IntelligenceThemes, sentiment, and feature requests pulled from your reviews and your rivals'.Idea ValidatorScores an app idea 0 to 100 from store and Google search demand and how unhappy rival apps' users are, before you build it.Screenshot StudioDesign store screenshots and export them at exact store sizes.Marketing BoardYour 12-week growth plan as a task board, every card linked to the tool that does the job.
The 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 tools above 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 Ads | Google App Campaigns |
Frequently asked
ASO tools, answered
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.
The checkers are. You can check your App Store or Google Play ASO score, any app's Google Play rating, and where your app ranks for a keyword, all with no sign-up. The full per-check report with AI-written fixes and the listing generators are part of Max, which starts with a 7-day free trial. Your card is taken up front, and you pay nothing if you cancel before day 8.
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.
No. The ASO score checkers show your score, grade and category breakdown for free with no sign-up. The full per-check fix list and the listing generators are part of Max, which starts with a 7-day free trial.
The best free ASO tool is one that scores your listing against the factors each store actually ranks and shows specific fixes. ReachFront's ASO checkers do that for free, with no account, for both the App Store and Google Play, and the Play rating checker and app rank checker are free too. The listing generators, which write optimized metadata within each store's character limits, are part of Max.
Use the free App Rank Checker: enter your app's name or store link, the keyword, and up to 5 countries. It searches each country's App Store or Google Play results and shows your position in the top 30, market by market. Rankings differ by country, so checking several markets at once tells you far more than searching on your own phone.
Paste the app's Play Store link into the free Google Play Rating Checker. It reads the live listing and shows the average star rating, the total number of ratings and the 1 to 5 star breakdown, in up to 5 countries. App Store links work too, with the average and count per country.
The full ASO toolkit, 7 days free on Max
Listing generators, AI-written fixes, keyword research, daily rank checks in your home market and a weekly competitor watch, for both stores. Max starts with a 7-day free trial: your card is taken up front, and you pay nothing if you cancel before day 8.