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Privacy Policy

onemu lab ("we") sets out below how it handles personal information in the "ZANGE (Impulse Buy Tracker)" app (iOS app and web version) and on its landing page (the "Site").

Handling of information in the ZANGE app

The app itself (iOS app and web version) operates on the following principles.

  • Your records (amount, category, note, and date) are stored only on your own device. They are never sent to or stored on our servers.
  • No account or login is required, and the app does not collect personal information such as your name or email address.
  • The in-app feedback form is optional. It uses Google Forms (Google LLC), and anything you enter is stored on that service.
  • In-app purchases (ZANGE Pro) are processed by Apple. We never receive your credit card or other payment details.
  • We do not display ads or perform analytics or tracking in the app.
  • Your records can be completely erased from your device via "Delete all records" in the app, or by deleting the app.

1. About this Site (the landing page)

This Site does not collect any personal information such as your name, email address, phone number, or payment details. There are no accounts or input forms, and pre-registration (email sign-up) has ended.

2. Analytics and advertising

This Site does not use analytics tools or advertising cookies. If we introduce these in the future, we will revise this policy and provide notice.

3. Provision to third parties

Because we do not collect personal information through this Site, we do not provide, sell, or lend any personal information to third parties in connection with this Site.

4. Security management

This Site runs on Cloudflare's infrastructure, and communication logs and similar data may be processed to help ensure secure access.

5. Changes to this policy

The contents of this policy may be changed as necessary. Any changes take effect when posted on this Site.

6. Contact

For inquiries about this policy or about the handling of personal information, please contact us by email (zange-support@onemu-lab.com) or on X (@onemu_lab).

Established: May 28, 2026

Revised: June 13, 2026 (added handling within the app)

Revised: June 22, 2026 (pre-registration form ended with the iOS app launch)

Operated by: onemu lab

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