Free ASO tools
For a single app, free sources cover most of a first optimization pass: store autocomplete gives you real query prefixes, App Store Connect and Play Console report impressions and conversion for nothing, competitor listings show which terms your category values, and several vendors offer a free tier good for one app. What free tiers cannot give you is tracked history — your rankings and your competitors' metadata changes over time — which is precisely the thing that makes ASO measurable rather than anecdotal.
Key takeaways
- Store autocomplete is the cheapest genuine demand signal available, and it costs nothing.
- Your own console analytics already contain impressions, product page views and conversion rate.
- Free tiers are generally limited by app count and history depth rather than data quality.
- The moment you need to prove a change worked, you need tracked history — that is where free ends.
How we compared them
Ranked by how much of a first optimization pass each source can complete on its own, for a team with one app and no budget. Vendor free tiers are included only where the free tier does something useful without a sales call.
The free sources, ranked by usefulness
- 1
App Store and Google Play autocomplete
Best for: Finding real queries users type
Type your category terms into store search and read the suggestions. These are actual query prefixes rather than modelled volume, which makes them the highest-signal free source in ASO.
- 2
App Store Connect and Play Console
Best for: Measuring what your listing already does
Impressions, product page views and conversion rate, free with your developer account. Most teams optimize for months without ever reading these, and they answer whether your problem is discovery or conversion.
- 3
Competitor listings
Best for: Learning what your category values
Read the titles, subtitles and first three screenshots of the top ten apps for your target term. It costs an hour and tells you which terms the category treats as worth spending characters on.
- 4
appXL free ASO score
Best for: A structured first audit
A free audit of your listing against store limits and keyword coverage, with the specific changes to make. Limited to a small number of checks per week.
- 5
Vendor free tiers
Best for: Light keyword exploration
Several intelligence platforms offer a single-app free tier. Useful for exploring keyword estimates; typically capped on history, markets and tracked terms.
What a free stack genuinely covers
A no-budget optimization pass looks like this: pull twenty candidate terms from autocomplete, check which of them the top-ranked competitors actually use, rewrite your title, subtitle and keyword field around the ones that match your app honestly, then watch impressions in your console for a fortnight.
That process finds most of the obvious wins on a listing that has never been worked. It fails when you need to compare markets, prove attribution, or keep track of what competitors changed while you were not looking.
Where free tiers break down
- One app only — portfolios break every free tier immediately.
- One market, usually your home storefront, which hides most international opportunity.
- No stored history, so you cannot show that a change caused a movement.
- No competitor change alerts, so you learn about their new title when you happen to look.
- Rate limits that make weekly monitoring impractical.
The point at which paying is justified
The honest trigger is not app count or revenue, it is whether anyone will act on the extra data. A subscription that produces charts nobody reads is a worse purchase than no subscription.
In practice three conditions justify paying: you publish in more than two markets, you need to attribute movement to releases, or someone is accountable for organic growth and needs evidence. Until then, free plus discipline outperforms paid plus neglect.
Frequently asked questions
Are free ASO tools good enough?
For a single app's first optimization pass, usually yes. They fall short on tracked history, multi-market coverage and competitor monitoring, which is what paid tiers are really selling.
What is the best free keyword tool for apps?
Store autocomplete, used properly, beats every modelled free dataset because it reflects real queries. Pair it with a free audit to check your listing actually uses the terms you pick.
Can I do ASO with no tools at all?
Yes. Autocomplete, competitor listings and your own console analytics are enough to find and fix the common problems. Tools become necessary when you need proof rather than intuition.
appXL Research
App Store Optimization Research Team
The appXL research team analyzes App Store and Google Play ranking data across the apps our agent manages, and publishes what it finds.