Niche index
App Store niches worth a look
Terms where Apple reports high search demand and no single company holds more than three of the top 10. Thinnest fields first. That makes a term worth a look, not open — each one’s own page says whether its top 10 is thin or already established. No invented score: every number here is one you can check on the App Store.
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- ProductivityHigh demand10 different developerslive translator23.5K median ratings·5 charting·10 companies
Smallest in the top 5: 1,205 ratings at #4 (Live Translator: Translate +)
Top apps:
Translate Now - AI Translator
Live Translator - AI Translate
Google Translate - ProductivityHigh demand10 different developerspdf editor27.5K median ratings·6 charting·10 companies
Smallest in the top 5: 8,683 ratings at #5 (PDF Gear - PDF Editor & Reader)
Top apps:
PDF Expert: Editor & Reader
Acrobat Reader: PDF Editor
PDF Editor ®
A term dropping off this list is not “solved” — a company entering with 4 or more of the top 10, or demand falling out of the top two bands, moves it below the bar. Nothing here predicts which comes next.