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Cairn Journal
On-device AI micro-journal
Free · In‑App Purchases
Some feelings pass before you can name them. Cairn catches them in 30 seconds, from your wrist — record, transcribe, and analyze, all on Apple Watch and iPhone.
Your thoughts never touch a server. Voice, mood, and patterns are analyzed entirely on your device with Apple Intelligence — no account, nothing uploaded.
Raise your Apple Watch and say whatever's on your mind. That's a journal entry. Cairn transcribes your voice, senses your mood and energy, and quietly builds a picture of your hidden inner feelings over the weeks and months.
THIRTY SECONDS, NO BLANK PAGE
No typing, no prompts to fill in. Just talk for half a minute and you're done — before the thought slips away.
READS THE MOMENT, NOT JUST THE WORDS
On-device AI listens to what you said and how you said it, estimating mood and energy for every entry automatically. Over time, weekly insights and pattern alerts (with a subscription) reveal what lifts you, what drains you, and how your weeks really feel.
YOUR BODY, IN CONTEXT
With your permission, Cairn pairs each entry with heart rate and heart-rate variability from Apple Health — a quiet layer showing how a moment felt in your body, not just your head.
PRIVATE BY DESIGN
Your thoughts never touch a server. Voice recognition, mood analysis, and pattern detection all run on your device with Apple Intelligence. Nothing is uploaded, sold, or mined — and there's no account to create.
MADE FOR THE WRIST
Built for Apple Watch first, with an iPhone companion for reviewing, searching, and exploring your entries — plus Home Screen and watch complications to start an entry in a single tap.
FREE TO USE
Download and journal for free: up to 3 voice entries a week, with on-device mood and energy analysis included.
CAIRN CORE & PRO (OPTIONAL SUBSCRIPTION)
• Core — unlimited 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, offered monthly or annually. Payment is charged to your Apple Account at purchase and renews automatically until cancelled; manage or cancel anytime in Apple Account settings.
Terms of Use (EULA): https://cairnjournal.com/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Clearer, friendlier wording throughout, including a simpler way to begin your first entry.
• Morning and Evening reminders now arrive right at the times you set, in your device's local time.
• Reliability and polish across iPhone and Apple Watch.
The developer, INFO WEB s.r.o., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
- Diagnostics
The developer indicated that this app supports the following accessibility features. Learn More
For more information, visit the developer’s accessibility website .
Information
- Seller
- INFO WEB s.r.o.
- Size
- 21.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Apple Watch
Requires watchOS 26.2 or later.
- iPhone
- Languages
English and 3 more
- English, Czech, French, German
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Cairn Journal Core (Annual) $29.99
- Cairn Journal Pro (Annual) $59.99
- Cairn Journal Core $3.99
- Cairn Journal Pro $6.99
- Copyright
- © INFO WEB s.r.o.
