Keyword difficulty is the number every ASO tool charges for, and the one you need before you can decide anything. Applyra now publishes it.
Each keyword gets its own page with its difficulty score, its search traffic score, and the apps currently holding the top positions on the App Store and Google Play, market by market. No account, no trial, no email field.
The same release opened a hub for every free tool Applyra runs, so the keyword data, the competitor finder and the rest sit in one place instead of being scattered across the site.
Difficulty here is not a guess from a search volume estimate. It reads the live results: how strong the apps ranking are, and how recently they updated their listings. A keyword held by big, freshly updated apps scores hard. One held by stale listings scores easy, and that is where an indie app gets in.