Sensor Tower review (2026): what it costs, what's free, and whether an indie iOS app needs it

Sensor Tower is built for companies that make decisions from market-wide data: publishers sizing a category, investors, ad networks, large studios. Its own About page says it is "trusted by more than 2,500 enterprises worldwide". An indie developer can use some of it for free, but the paid product is priced for enterprise budgets.

There is no price list. The pricing page redirects to a demo request, which says: "We customize pricing plans for each customer - get in touch to find your perfect fit." Sensor Tower describes its business as "insights delivered to customers on an annual subscription model", and its product pages say pricing "varies based on access level, markets covered, and features."

The best public guide to what buyers pay is Vendr, a software purchasing service that publishes anonymized contract data:

• A free account. Sensor Tower answers "Is it free?" with: "Yes, you can sign up for free here. Full access to App Performance Insights is available via paid plans." The sign-up asks for a company and job title. What the free tier includes isn't documented, and its terms say it "may be limited, modified, or removed at any time".
• Top charts. Free, Paid and Top Grossing charts by category and country are viewable without logging in at app.sensortower.com/top-charts.
• Monthly market posts. Its blog publishes a monthly top-10 of worldwide mobile games by revenue and downloads, plus regular data digests.
• Headline report figures. The State of Mobile report is behind a form, but the press release carries the main numbers — for example, that in-app purchase spending "reached $167 billion globally" in 2025.

For your own app, the most accurate free data is already in App Store Connect: impressions, product page views, conversion rate and downloads by source. Our page on app impressions explains how to read them.

• App Performance Insights. Download and revenue estimates, engagement and market trends across the App Store and Google Play.
• ASO. Sensor Tower says it "supports ASO by tracking keyword rankings, app visibility, category trends, and competitor positioning", and rates keywords "by effectiveness … as well as their overall difficulty for ranking". It also covers Apple Search Ads competition.
• Advertising intelligence. App Advertising Insights shows competitors' paid acquisition; Pathmatics, acquired in 2021, covers digital ad spend across channels.
• Usage and audience data. Time spent, sessions and retention from a consumer panel, plus audience demographics and overlap with other apps.
• data.ai's data. Sensor Tower acquired data.ai (formerly App Annie) in March 2024, so the two biggest app-intelligence datasets now sit in one company.

Sensor Tower's downloads and revenue figures are estimates, not reported data. It builds them from a consumer panel — "more than 10 million consumers", collected partly through its own apps such as StayFree and Luna VPN — combined with models, and says that "since no dataset represents 100% of all digital user behavior, we model our data to estimate".

It doesn't publish an error rate. Its product page describes the estimates as widely used "for directional analysis", and data shown through AppMagic carries a disclaimer that Sensor Tower "disclaims all representations, warranties, and liability as to their accuracy". Competitors argue that small apps are the weak spot because fewer panel members use them; that's a reasonable expectation, but the examples published so far are anecdotal.

Practical rule: use estimates to compare apps against each other and to spot trends, not to quote a competitor's exact revenue. If a founder's revenue claim matters to your decision, look for a primary source.

Most indie apps don't need a tool before they need a plan: which 20 keywords are winnable, and what the listing should say. Our post on ASO tools vs an audit covers when a subscription is worth it, and the App Store ranking factors post covers what to work on first.