Kimochi: Mood Diary & Journal
Nothing you write ever leaves
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Some days are hard to put into words.
This app is simply a place to write the day down, and keep it.
■ What you write never leaves this device
Nothing is sent to a cloud. No account, no sign-in.
In airplane mode you can still write, read back, search and make a PDF.
Even the part that picks out topics from your mood (work, sleep, body and so on) runs entirely on this device.
What you write — the text, the mood and the photo — never leaves this device in any feature. To improve the app we send only how far you got, in a form that does not identify you.
■ You don't have to tidy it up
A few words or a long entry — it stays exactly as you wrote it. Write as many times a day as you like.
The app never rewrites your words, and never summarises them.
On a day you cannot write, a photo on its own is enough.
■ You choose the mood yourself
Seven steps, chosen by hand. No AI decides it for you.
AI assistants tend to stop helping when a sentence carries painful words, and being met with silence on your hardest day is the last thing anyone needs.
■ Look back, quietly
The calendar shows a band of colour for each day. Follow the bands and the day comes back exactly as you left it.
Once enough has been written, a strip of the past months appears above. Touch it to jump to that month.
Search by the words you wrote. The search crosses months, so it reaches that day a year ago.
■ Take it with you to an appointment
Choose a period and make a PDF. It carries the sentences you wrote and the mood you chose, and nothing else.
No severity, no trends, no interpretation added by the app.
■ Because it is not for anyone else
Lock it with Face ID or your passcode. That is free, and always will be.
You can attach one photo to an entry. When you change phones you can take everything with you as a file, photos included.
■ About the price
Writing, reading back, searching, the lock and the backup are free forever, with no limit on how much you keep.
The only paid part is Export — the PDF you take to an appointment — and it is a one-time purchase.
There is no subscription and no ads.
Kimochi Diary is a tool for keeping a record. It does not diagnose or treat. If a hard time continues, please talk to a health professional.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Thank you for using this app.
From this update, you can write an entry for a day you were not able to write on, later. We have also gone back over the details so that the app feels more comfortable to use.
If anything catches your eye, please tell us from the inquiry form inside the app. What you send us becomes the starting point for the next improvement.
The developer, RAINBOW TREE LLC, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- RAINBOW TREE LLC
- Size
- 4.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Consultation PDF $59.99
- Copyright
- © 2026 RAINBOW TREE LLC