Research
Original studies of public App Store reviews for recovery, rep-counter and appearance apps, with the method, sample sizes, limitations and downloadable data.
App Store Pulse
A weekly, data-only snapshot of Apple's public App Store charts for Health & Fitness and looks/appearance apps in the US and India, with ratings, prices, week-on-week movers and a CSV for every edition.
Face-rating and glow-up apps: what's free, what's locked, and what reviewers complain about
We checked 14 appearance and face-rating app listings for what they say is free, and sorted two years of public App Store reviews into complaint categories.
What frustrates people about push-up and rep-counter apps
We sorted public App Store reviews of 9 push-up counter and trainer apps into complaint categories. Counting reliability leads for auto-counters; pricing changes lead for plan apps.
What people complain about in recovery and HRV apps
We sorted two years of public App Store reviews for 11 recovery, HRV and sleep apps into complaint categories, using published keyword rules. Pricing comes up far more than accuracy, sync or battery.