Hitotarashi

Relationship notes & advice

Only for iPhone

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

iPhone

Hitotarashi is a private notebook for the little things you notice about the people who matter to you, so you can build better relationships with them. Partner, crush, family, friends, coworkers. Make a folder for each person and write down what you know and what you've noticed about them: their birthday, what they love, what they'd rather avoid, how they've been lately. Your notes are sorted by topic automatically. When a relationship has you stuck, open the Ask tab. Drawing on your notes, Hitotarashi helps you find the right words for that person and sort through your own feelings. ■ Perfect for moments like these • You can't decide on an anniversary gift • You're not sure how to start talking again after an argument • You're trying to find the right balance with family or coworkers • You don't want to forget what someone loves ■ Write with peace of mind • Everything you write is stored encrypted • Lock the app with Face ID or Touch ID • Deleting your account permanently erases all your data • To give advice and sort your notes, your notes and questions are sent to an external AI service (Anthropic). We ask for your consent before first use, and you can withdraw it anytime in Settings ■ Plans Free to use with up to 3 folders. If you'd like to ask more often or make folders for more people, monthly auto-renewing subscriptions are available: • Bronze: up to 10 folders, all modes • Silver: unlimited folders, 10× the Bronze allowance • Gold: unlimited folders, 20× the Bronze allowance Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can cancel anytime in your device settings (Subscriptions). Terms of Use: https://hitotarashi.ebla.jp/terms Privacy Policy: https://hitotarashi.ebla.jp/privacy

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

- If the app is installed, "Get started" on our website now opens the app directly. - To ask for advice, add at least 10 notes about the person first. The more notes you add, the better the advice fits them. - To find articles, add at least 5 notes about things they like, their hobbies, or places they want to go. - Minor improvements.

Version 1.0.1

The developer, Ryutaro Okumura, 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
    • Contact Info
    • User Content
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data

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
Ryutaro Okumura
Size
11.9 MB
Category
Lifestyle
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 2 more
  • English, Japanese, Korean
Age Rating
9+
  • 9+
  • Learn More
  • Infrequent
    Mature or Suggestive Themes

    Contains
    Health or Wellness Topics
In-App Purchases
Yes
Copyright
© 2026 Ryutaro Okumura
  • Privacy Policy

    • More by Ryutaro Okumura

    You Might Also Like