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Terms of Use

TsukiLift / Effective: May 2026

1. Application of these terms

These terms set out the conditions for using TsukiLift (the "App"). By using the App, you are deemed to have agreed to these terms.

2. Eligibility

  • You are 13 years of age or older
  • App Store: You use an iPhone running iOS 17.0 or later
  • Google Play: You use a device running Android 9.0 or later

The App may not be used by anyone under 13 years of age.

3. Medical disclaimer

⚠️ This App is not a medical device. Cycle predictions, condition suggestions, and training recommendations are trend information derived from the records you enter yourself, and do not constitute medical diagnosis, treatment, or medical advice of any kind.
  • Information in the App is not a substitute for the judgment of a doctor, pharmacist, or other qualified professional.
  • If you have any health concerns, always consult a healthcare professional.
  • The App may not be used to identify ovulation or to make pregnancy or contraception decisions.
  • If you feel acutely unwell, seek medical care regardless of what the App displays.

4. Grant of licence

The App grants users who agree to these terms a non-exclusive, non-transferable licence limited to personal, non-commercial use.

5. Prohibited acts

  • Reverse engineering, decompiling, or tampering with the App
  • Use that violates laws or public order and morals
  • Use that infringes the rights of others (copyright, privacy, and so on)
  • Redistribution or resale for commercial purposes

6. Premium subscription

  • Price: ¥290 per month / ¥2,380 per year (both including tax)
  • App Store: Billing: An auto-renewing subscription. Your Apple ID payment method is charged automatically at the start of each billing period.
  • App Store: Payment processing: Handled through StoreKit by Apple Inc. The App never handles payment details directly.
  • App Store: Cancellation: You may cancel at any time from "Settings" → "Apple ID" → "Subscriptions" on your iPhone. Cancellation takes effect from the next renewal date.
  • Google Play: Cancellation: You may cancel at any time from the Google Play app → "Payments & subscriptions" → "Subscriptions". Cancellation takes effect from the next renewal date.
  • App Store: Refunds: Governed by Apple's policy. Please direct refund requests to Apple Support.
  • Difference from the free plan: Core logging (period, workouts, BBT, body composition, symptoms), the calendar, and data export are free to use. Premium adds advanced analysis and unlimited templates.

7. Intellectual property

Copyright and other intellectual property rights in the App and its design, content, logo, and code belong to the provider of the App. The licence granted under these terms does not transfer any of those rights.

8. Changes to and suspension of the service

The provider may change the features or content of the App, or suspend its provision, without prior notice.

9. Disclaimer

The App is provided "as is". Except where liability cannot be excluded by law, the provider accepts no responsibility for damages arising from use of the App, including loss of data or effects on your health.

10. Changes to these terms

If we change these terms, we will announce it in the App's update release notes. Continued use of the App after a change is deemed acceptance of the revised terms.

11. Governing law and jurisdiction

These terms are governed by the laws of Japan. The Tokyo District Court shall have exclusive jurisdiction as the court of first instance for any dispute relating to the App.

12. Contact

For questions about these terms, please contact us at the address below.

freetokyo2020@yahoo.co.jp

Android purchases, and use by minors

In-app purchases in the Android version are processed through Google Play. Payment and refund procedures follow Google Play's terms and processes. Google Play handles refunds immediately after purchase; after that window, please contact us through the support page.

Minors may use this app, but should obtain a parent or guardian's consent before making an in-app purchase. Guardians can control purchases with Family Sharing / Ask to Buy on the App Store, or Parental Controls on Google Play.

Limitation of liability (overriding)

Notwithstanding any other provision of these terms, Except in cases of our willful misconduct or gross negligence, our liability for any damages arising from your use of the app is limited to the amount you paid us for the app. Where such a limitation is not permitted by mandatory law, we are liable to the extent that law provides.