We defined 'free' strictly: the core experience must be usable indefinitely without payment. Apps with 7-day trials that expire into a paywall did not qualify. Apps with limited free tiers that still deliver real CBT exercises did qualify, with the free-tier limits clearly noted.
Tested across four dimensions: CBT methodology fidelity (does the app teach actual CBT skills — cognitive restructuring, behavioral activation, thought records — versus generic 'wellness'), free-tier completeness (how much real content is behind the paywall), evidence base (published outcomes research), and friction (how often the app nags you to upgrade).
ILTY is disclosed and positioned at #4 with honest caveats: our download is free, but a hard paywall hits after onboarding. We include ourselves because users searching 'free CBT apps' deserve to know we're not strictly free, and because we want to point them to the actually-free options first.
Disclosure
ILTY is the publisher of this roundup. ILTY is included with the explicit honest disclosure that we are NOT free in the strict sense — our download is free but a subscription is required to use the app meaningfully. We rank ourselves at #4 in this list and direct users to the strictly-free options at positions 1-3 if free is a hard requirement. Pricing and tier definitions accurate as of May 15, 2026. Update, August 13, 2026: every app on this list was re-verified against its live App Store listing, Google Play listing, and vendor site. This pass checked COMMERCIAL FACTS only — whether the app still exists, pricing, platforms, and store ratings. It did NOT re-run the hands-on testing protocol described above; rankings and hands-on impressions still date from the original testing round. We are saying that plainly rather than letting a fresh date imply a fresh test. What the pass found across the site: Sanvello's consumer app is discontinued (delisted from both stores; sanvello.com no longer resolves), Youper is shutting down September 30, 2026 (already delisted, data purged October 1), and GG OCD was renamed to OCD.app. Per-vendor records now live in src/data/appFacts.ts with the source checked and the date checked.
The research behind this
Rankings on this page draw on The 2026 State of AI Mental Health Apps, our own study of 15 apps across 8 criteria. Crisis handling was tested by hand: the same four escalating messages typed into every app, screenshots kept. Four of them never produced a crisis number. Every score is published with the reasoning behind it, including ILTY’s, and the rubric is CC-BY if you would rather score apps yourself.