Himotoku: Diary & Assistant

Talk or type, ask your past

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Talk or type; it becomes a diary page. To-dos go to Reminders with a tap. Photograph paper diaries. Your first 30 entries and 3 questions are free; export always is. Ask your past self. "When did I last talk with Tanaka?" "What did I spend last month on?" — every answer comes with its source page. If your diary doesn't say, Himotoku says so. ■ Talk for 90 seconds Say what happened today. It is transcribed on this iPhone and organized into a readable diary page. No typing, no willpower needed. On days you would rather write, type it. Keep the text as written, or have it organized the same way, with to-dos and plans picked out. When to-dos and plans are found, add them to Reminders and Calendar with one tap. Nothing is added unless you tap. ■ Ask your past Ask your pages in plain words. Answers cite the day they came from and never invent what isn't written. "When did I decide that?" "What was I doing this time last year?" — your diary becomes something you can use later. ■ Bring in paper diaries Photograph years of paper diaries. Whatever can be read becomes searchable in your timeline. The original photos stay with the page. ■ Your diary stays on this iPhone • Your diary is never stored on the developer's servers (there is no database to store it in) • It is never used to train AI • Your voice never leaves the device; speech is transcribed on this iPhone • Only when organizing or answering a question, the text for that one step is sent to Microsoft's Azure AI service (Japan region) for AI processing. It may be retained for up to 30 days for abuse monitoring • Export everything as Markdown and audio at any time ■ Free and paid Free: your first 30 entries, spoken or typed, organized by AI. Your first 3 questions to your past. Plus (monthly, 7-day free trial): unlimited recording and organizing, ask your past, and search by meaning. Renews automatically after the free trial; cancel during the trial and you pay nothing. After those 30, your existing pages stay readable and searchable, and you can still export everything as Markdown and audio, for free. ■ A quiet app No nagging notifications (the only one, if you opt in, is a monthly export reminder). No countdowns, no full-screen ads. Requires iPhone with iOS 17 or later. Japanese and English. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Supplemental Terms (disclaimers and how the app is run): https://yoshimotokzm.github.io/himotoku/en/terms/ Privacy Policy: https://yoshimotokzm.github.io/himotoku/en/privacy/

Ratings & Reviews

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Refreshed the App Store screenshots. The app itself works the same as in 1.0.

Version 1.0.1

The developer, kazuma yoshimoto, 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:

    • User Content

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
kazuma yoshimoto
Size
2.9 MB
Category
Lifestyle
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.
Languages
English and Japanese
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 Kazuma Yoshimoto
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More