Privacy Policy
HiBUNO ("we", "us") respects your privacy. This policy explains what personal information we handle when you buy and use Kakeifu – Family Timeline (the "App"), and what we do not collect.
1. Your family records stay on your device
The records, photos and voice recordings you keep in the App are stored only in your browser on your own device. They are never sent to us, and we cannot see them. We do not use cookies, advertising or analytics in the App.
2. Information we handle
| When | What |
|---|---|
| When you buy | Your name, email address, the item and amount, and the date of payment. Your card details are handled directly by Stripe; we only receive limited information such as the card brand and the last four digits. |
| When you first enter your purchase code | The App sends only the purchase code to our server to check it. We keep a one-way scrambled (hashed) form of the code and how many devices have used it. To prevent misuse, we keep a one-way scrambled form of your IP address for 1 hour only. |
| When you contact us | Your email address and the content of your message. |
3. How we use it
- To send your purchase code and instructions, and to process refunds
- To answer your questions
- To prevent misuse of purchase codes
- To meet our legal and tax obligations
We do not sell your personal information, and we do not use it for advertising.
4. Service providers and international transfers
| Provider | Purpose | Location |
|---|---|---|
| Stripe Payments Japan, K.K., Stripe, Inc. and their affiliates (including Link) | Payment processing, and calculation and collection of sales tax, VAT or GST for purchases from outside Japan | United States and others |
| Google LLC (Gmail) | United States and others | |
| XServer Inc. | Web hosting and purchase code check | Japan |
We are based in Japan and handle personal information in accordance with Japan's Act on the Protection of Personal Information. Your information may be processed in Japan and the United States.
5. Speech to type
If you use "Speak to type", your browser may send your voice to its provider (such as Apple or Google) to convert it into text. This is handled by that provider, not by us. You can use the App without this feature.
6. How long we keep it
- Purchase and payment records: for the period required by Japanese tax law (generally 7 years), then deleted
- Support emails: deleted within 1 year after your inquiry is resolved
- Scrambled IP addresses for the code check: 1 hour
7. Security
We use secure connections (HTTPS), keep purchase codes only in scrambled form, and limit access to personal information. Files you create with "Share with family" are locked with your passphrase on your device; we never receive the passphrase.
8. Your rights
You may ask us to tell you what personal information we hold about you, or to correct, delete or stop using it. Please email us from the address you used for your purchase so that we can confirm your identity. There is no charge. Depending on where you live, you may have additional rights under local law.
9. Children
The App is not directed to children under 13, and we do not knowingly collect personal information from them. Records about children that families keep in the App stay on the family's own device and are not sent to us.
10. Changes
If we change this policy, we will post the new version on our website.
11. Contact
HiBUNO (Atsuhiko Miki), Kobe, Hyogo, Japan — hibuno2026@gmail.com
Support is available in Japanese only.