Cairn Journal

Everything stays on your device. Voice recognition, mood analysis, and pattern detection all run on-device using Apple Intelligence — your thoughts never touch a server.

Capture how you feel in just 30 seconds. Tap your Apple Watch, speak whatever's on your mind, and Cairn does the rest — transcribing your voice, sensing your mood and energy, and quietly building a picture of your inner weather over time.

A JOURNAL THAT TAKES SECONDS No blank page. No typing. Just raise your wrist, talk for half a minute, and you're done. Cairn turns a passing thought into a lasting entry before the moment slips away.

UNDERSTANDS HOW YOU FEEL On-device AI listens to what you said and how you said it, estimating your mood and energy automatically for every entry. With a paid subscription, weekly insights and pattern alerts reveal what lifts you, what drains you, and how your weeks really feel.

RICHER WITH YOUR HEALTH DATA With your permission, Cairn pairs each entry with heart rate and heart rate variability from Apple Health, adding a quiet layer of context to your reflections.

PRIVATE BY DESIGN Everything stays on your device. Voice recognition, mood analysis, and pattern detection all run on-device using Apple Intelligence — your thoughts never touch a server.

DESIGNED FOR THE WRIST Built for Apple Watch first, with an iPhone companion for reviewing and exploring your entries. Start an entry anywhere, anytime — Cairn is always one tap away.

WHAT'S FREE Cairn is free to download and use, with up to 3 voice journal entries per week and on-device mood and energy analysis.

WHAT A SUBSCRIPTION ADDS (PAID) A Cairn subscription is optional. The following features require a paid subscription: • Core — unlimited journal entries, weekly insights, and pattern alerts • Pro — everything in Core, plus managed cloud AI for languages Apple Intelligence doesn't yet cover

Subscriptions are auto-renewable and offered as monthly or annual plans. Payment is charged to your Apple Account at purchase, and the subscription renews automatically until cancelled. You can manage or cancel anytime in your Apple Account settings.

Terms of Use (EULA): https://getcairnapp.com/terms