May 13, 2026 · Teardown
Cal AI
Photo-based AI calorie tracker. Ran 123 paywall experiments across 46 trigger points before being acquired by MyFitnessPal for ~$50M ARR.
Paywall Library
Research · Paywall patterns · AI consumer apps
How AI consumer apps make money.
Field research on the paywalls, onboarding flows, and pricing tactics behind the apps printing money on the App Store — pulled apart so indie hackers can actually copy them.
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