Spy discovers apps advertising right now, monetizing via in-app purchases, and scaling — then shows you the exact ad creatives behind them. Stop guessing what to build.
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Built on real, regulator-mandated ad transparency data and a multi-million-app catalog.
Surface apps that pass every proof at once — running ads right now, monetizing via in-app purchases, and scaling in installs and reviews.
See the live Google and Meta ad creatives behind each app, pulled from the transparency centers — formats, run dates, and advertiser variants.
Search, sort, and filter across ~3.4M iOS and Android apps with exact counts and true global ordering — powered by a columnar data lake.
Rank advertisers by how long they've run ads and which niches are heating up week over week, so you build where the money already is.
Growth baselines track install and rating momentum, separating apps that are actually scaling from ones that merely exist.
Find low-rated apps still buying lots of ads — proven demand with a weak incumbent you can out-build.
Start from Tools, Productivity, Photography, or Video — or explore the entire catalog.
Layer on ads-running, IAP, min installs, and growth to isolate apps that are already working.
Open any app to inspect its live creatives and advertiser footprint, then build your version.
Create an account and get full access free for 30 minutes. Subscribe any time to keep going.