AppSupa helps you decide which mobile app to build. Instead of guessing, you start from apps people already pay for.
How it works: search an app you know or open a niche, see estimated monthly revenue and downloads for the top apps, read what users complain about in the leaders' reviews, and check keyword demand and difficulty for each country's store. Then decide: build it, skip it, or build the better version.
It covers 5.9M App Store and Google Play apps, with revenue and download estimates for 590K+ of them in 40+ country stores. Made for indie iOS and Android developers, vibe coders, solo founders and small studios. $29/month or $290/year, with a 7-day refund on the first payment.