Score any App Store keyword in seconds.

The free ASO research tool indie iOS devs use to find winnable keywords, grade their listing, and watch their rankings. $9.99 one-time unlock — no subscription, ever.

Top 3 in App Store for "ASO tool" No account required iPhone & iPad
Keyword Scout rank comparison matrix — your App Store rank vs. every competitor, keyword by keyword

What it does

Find keywords you can actually win.

$9.99 once. No subscription, no account, free to start.

Download Free on the App Store

Privacy

Your data stays on your device.

Keyword Scout was built with a simple rule: don't collect what you don't need.

Everything you create — saved keywords, tracked apps, ranking history — stays on your device (Apple's SwiftData), never sent to a server or shared with anyone. No account, no email, no advertising, no profiling. Keyword searches use Apple's public iTunes Search API with no user identifiers; purchases run entirely through Apple's StoreKit. Only anonymous event counts (no personal data, no device IDs) are reported via TelemetryDeck to see which features get used.

FAQ

Questions, answered honestly.

What is Keyword Scout?

Keyword Scout is a native iOS app for App Store keyword research and ASO. Type any keyword and get a difficulty and saturation score in seconds, see the apps competing for it, grade your own listing, and watch how your rankings change over time. Built for indie iOS developers.

How much does Keyword Scout cost?

Free to download and use. Pro features unlock with a one-time $9.99 purchase — no subscription, no recurring fees. Free tier includes 10 keyword searches per day; Pro is unlimited and adds bulk keyword scoring, 175-country market comparison, listing optimizer, and competitor intelligence.

Is Keyword Scout a free ASO tool?

Yes. The core keyword research is free — score any App Store keyword for difficulty and saturation, see top competitors, and read related keyword suggestions, all without paying. Free tier is rate-limited to 10 searches per day. Pro removes the limit and adds advanced features for a one-time $9.99 unlock.

How is it different from AppFollow, Sensor Tower, or AppTweak?

Three differences. First, Keyword Scout runs natively on iPhone and iPad — every other ASO tool is web-only or Mac-only. Second, pricing is one-time $9.99 instead of monthly subscription ($24-100/month). Third, the audience is indie iOS developers, not enterprise marketing teams, so the workflow is designed for solo builders doing their own research.

Can I do App Store keyword research on iPhone?

Yes. Keyword Scout is built natively for iPhone and iPad. Most ASO tools require sitting at a desktop or signing into a web dashboard, but Keyword Scout lets you research keywords, grade your listing, and check competitor rankings directly from your phone — useful when ideas hit between meetings.

Does Keyword Scout require an account?

No account required. No email, no sign-up. All your data — saved keywords, tracked apps, ranking history — stays on your device using Apple's SwiftData framework. Nothing is sent to any server.

What's the difference between difficulty and saturation scores?

Difficulty measures how strong the top-ranking apps are for a keyword — based on review counts and ratings. A high difficulty means established apps dominate and ranking against them is hard. Saturation measures how many apps already use the keyword in their title or subtitle. High saturation means the keyword is structurally claimed; low saturation means the space is open even if difficulty is high.

Which countries does Keyword Scout support?

All 175+ App Store markets. Pro users can compare keyword performance across any country, helping find markets where a keyword has lower competition or higher demand than in the US. Free users can search any single market.

Is there a free alternative to AppTweak or Sensor Tower?

Keyword Scout is a free-to-start, native iOS alternative to AppTweak and Sensor Tower. Score any App Store keyword for difficulty and saturation, analyze competitors, and grade your listing for free; Pro unlocks unlimited use for a one-time $9.99 instead of a monthly subscription. It is aimed at indie developers doing their own ASO rather than enterprise marketing teams.

Is there an ASO tool with no subscription?

Yes. Keyword Scout is a one-time $9.99 purchase with no recurring fees, plus a free tier you can use forever. Most ASO tools (AppTweak, Sensor Tower, AppFollow, Mobile Action) charge $24 to $100+ per month. Keyword Scout gives you keyword scoring, bulk search, 175-country comparison, competitor intelligence, and a listing optimizer for a single payment.

How it compares

Coming from another ASO tool?

vs Astro

Mac-only and $108/year vs. iPhone-native and $9.99 once — plus where each gets its demand data.

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vs ASO.dev

A management console vs. a research tool — and why needing no App Store Connect linking is a feature.

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vs Appfigures

Analytics platform with keyword caps by tier vs. keyword research with no ladder to climb.

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