Family Book - Tree & Kinship
Family tree & kinship terms
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Family Book — family tree, kinship terms, and gift records in one place.
“What do I call them again?” “Which memorial year is it this year?” Family Book keeps every answer in one private book.
■ The tree draws itself
- Just add people as parent, child, or spouse — the layout never breaks
- Adoption and remarriage supported (divorces shown as dashed lines)
- Export as an A4 PDF or image to share with relatives
■ Kinship terms, instantly
- Pick two people to see the exact relationship and its degree — like “first cousin once removed”
- Flip the viewpoint with one tap, and share the answer as a card
■ Never miss a birthday or memorial
- Add birthdays and dates of death to see anniversaries and memorial rites listed automatically
- Optional advance reminders (1 day or 1 week before)
■ New Year card list
- Mark each person Send / Skip / Mourning, with addresses at a glance
- After mailing, record cards for everyone in one tap
■ Gift & interaction history
- Log gifts, condolence money, cards, and visits with amounts
- Next time, you will know exactly what you did before
■ Everything stays on your device
- No sign-up, no login. Your family's information never leaves the device
- Move to a new phone via backup export and import
■ Free & Pro Pass (one-time purchase)
- The free version covers the basics: family tree, kinship terms, dates, and the card list (up to 20 people, 10 records per person)
- Pro Pass (one-time, not a subscription) unlocks unlimited people & history, watermark-free PDF/image export, CSV export, and no ads
About ads: the free version shows a single banner at the bottom of the Dates tab only — never while you edit your tree or records.
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Thank you for using our app.
In this update we went back over the app and refined it throughout, including the parts you may never notice, so that it feels smoother to use.
If anything comes up, please let us know from the inquiry form inside the app. Your feedback shapes what we improve next.
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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- RAINBOW TREE LLC
- Size
- 16.9 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.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Pro Pass (One-Time) $2.99
- Copyright
- © 2026 RAINBOW TREE LLC