Best Free App Revenue Estimators (2026): How They Compare

Two kinds of “revenue estimator”

Searchers use the same phrase for two different tools. A competitor revenue estimator looks up an existing app and returns a modeled figure for a past period, for example gross in-app spend in August 2026. A revenue calculator takes your own assumptions, such as downloads, conversion rate and price, and projects what your app could earn. The first is market research; the second is a spreadsheet with a nicer interface.

This guide focuses on competitor estimators, and lists calculators separately so you can tell them apart.

What to check in any revenue estimate

Before comparing tools, know what a good estimate tells you. Five details decide whether a number is usable.

• Period: which month or 30-day window the figure covers.
• Scope: worldwide or one country; App Store, Google Play or both.
• Gross or net: before or after the store commission.
• What is excluded: ad revenue, web sales and subscriptions billed outside the store are usually missing.
• Uncertainty: a range or band, not just a single number.

AppGazers (free during beta)

AppGazers models each app’s worldwide gross in-app spend and downloads for one stated month (the 30 days ending August 31, 2026, when checked on October 6, 2026), for App Store and Google Play, and shows an 80% band with every figure. Apps below roughly 5K a month are shown as “< 5K” rather than a false-precision number. Estimates sit next to the evidence that helps you judge them: chart history, ratings growth, reviews, keywords and public ads.

Limits: estimates exclude advertising revenue, web sales and profit, and are not country-level. Best for: comparing a set of competitors with the uncertainty stated. It is free during beta after Google sign-in, and the same estimates are available to AI assistants through its MCP server.

AppTweak Market Intelligence Starter (free)

AppTweak’s free Market Intelligence Starter plan gives download and revenue estimates for apps and publishers, covering the past month plus lifetime totals, with three seats. AppTweak’s blog describes it as making these estimates available to everyone for free.

Limits: past-month history on the free plan, and the plan page does not show an uncertainty range. Best for: a free second opinion from an established ASO vendor.

AppMagic free tier

AppMagic’s free tier shows rounded worldwide revenue and download estimates for any past month, plus ranking history and the top levels of its game genre taxonomy. Its site states that AppMagic has been acquired by Sensor Tower, and deeper features moved to paid plans in January 2026.

Best for: games, and for looking back at a specific past month rather than only the latest one.

AppSprint revenue checker

AppSprint’s web checker returns monthly download and revenue estimates for iOS apps, the rating and category, short demand and monetization notes, and the dataset date. It worked without logging in when we tried it on October 6, 2026; for Duolingo it returned about $48.0M in monthly revenue from a dataset dated August 11, 2026. AppSprint titles the page a “Free ASO Tool”, and the page also links to its paid Mac app.

Limits: iOS only, no range shown. For comparison, AppGazers’ estimate for Duolingo on iOS for the 30 days ending August 31, 2026 was $53.6M with a band of $24.9M–$135.9M; different period and method, broadly the same order of magnitude.

Peekly and Sensor Tower: free accounts with limits

Peekly offers a free account with limited access and puts full estimates in its paid plan, shown at $20 a month billed yearly on October 6, 2026 (discounted from a struck-through $41); its methodology page says its estimates come from third-party estimates or its own model, and its pricing FAQ says they draw notably on Sensor Tower figures. Sensor Tower offers free sign-up for limited mobile app insights, with full data on customized plans through sales. We did not verify exactly which estimates either free account shows.

Not free: Appfigures lists download and revenue estimates only on its Boost and Amplify plans (and higher Market Intelligence plans); Boost starts at $349.99 a month billed annually, or $399.99 billed monthly.

Revenue calculators for your own app

RevenueCat’s App Store revenue calculator is a free projection tool for subscription apps: you enter price, trial and conversion assumptions, and it uses benchmarks from RevenueCat’s State of Subscription Apps report to project revenue, fees and break-even. It does not estimate competitors. Use it after competitor research, to test whether the numbers you saw in a niche are reachable with your pricing.

Why two estimators disagree about the same app

It is normal for two tools to show different numbers for one app, sometimes by a factor of two or more. The usual causes are mundane: one figure is gross and the other net of the store commission; one covers a calendar month and the other a rolling 30 days; one is worldwide and the other a single country or store; or one includes both the iPhone and iPad listings while the other counts only one.

Method matters too. Estimators learn the relationship between public signals, such as grossing ranks and ratings, and revenue from whatever reference data they have, and each vendor’s reference data and model differ. Before deciding which number to trust, line up period, scope and basis. If they still disagree after that, record both estimates with their periods and definitions. Overlapping ranges do not establish that either is accurate, and the overlap is not a validated combined estimate.

Example: reading one estimate correctly

AppGazers’ estimate for MacroFactor on iOS, for the 30 days ending August 31, 2026, is $1.47M in modeled worldwide gross in-app spend, with an 80% band of $685K–$3.73M. The responsible reading is: the model reports a range from the high hundreds of thousands to a few million dollars of App Store gross in-app spend for that period, before Apple’s commission and excluding any web sales. That is the model’s range, not a measurement of what the developer earned.

The irresponsible reading is “MacroFactor made $1.47M last month.” If two tools disagree, check whether they cover the same period, store and gross or net basis before concluding that one is wrong.

How we compared these estimators

We reviewed each tool’s own product, help and pricing pages on October 6, 2026, and recorded what is available without paying. We did not run an accuracy benchmark across vendors and make no claim about which vendor is most accurate. AppGazers is our product.

Official sources reviewed

• AppTweak pricing — Market Intelligence Starter plan; checked October 6, 2026.
• AppTweak: free download and revenue estimates — Free estimates announcement; checked October 6, 2026.
• AppMagic: free access update — Free tier scope; checked October 6, 2026.
• AppSprint revenue checker — Run on one app October 6, 2026.
• Peekly methodology — Estimate inputs; checked October 6, 2026.
• Sensor Tower sign-up — Free sign-up offer; checked October 6, 2026.
• Appfigures pricing — Plans that include estimates; checked October 6, 2026.
• RevenueCat App Store revenue calculator — Projection calculator scope; checked October 6, 2026.