Effective date: November 1, 2026
These Terms & Conditions (also the End User License Agreement, or "EULA") are between you and John Leonardo ("we," "us") for the Luna app for iPhone. By downloading, installing, or using Luna, you agree to these terms. If you do not agree, do not use the app.
1. License
We grant you a personal, non-exclusive, non-transferable, revocable license to install and use Luna on Apple devices you own or control, as permitted by the Apple Media Services Terms and Conditions and the Usage Rules in them.
2. The app
Luna is a cycle tracking and educational app: it records the period, symptom, and pregnancy information you log, and uses it on your device to estimate future cycle dates and to present educational content and reports. Luna is free: it has no subscriptions, no in-app purchases, no ads, and no locked features. Luna has no accounts and works entirely on your iPhone, apart from the optional iCloud backup and Apple Health features described in the Privacy Policy, which you control.
3. Not a medical device. Please read
Luna is not a medical device, and it does not diagnose, screen for, treat, or prevent any condition. Predictions of period dates, ovulation, and fertile windows are estimates based on the data you log; cycles vary, and an estimate can be wrong in either direction. Luna is not a method of contraception and must not be relied on to prevent pregnancy, and it is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified clinician about health concerns, and seek care promptly for symptoms such as severe pain, very heavy bleeding, or a missed period with a positive pregnancy test.
4. Your data and your decisions
The information you log remains yours and is stored on your iPhone. You are responsible for the accuracy of what you log and for decisions you make based on Luna's estimates and content. You can export your data at any time from Settings, and "Delete everything" in Settings permanently erases Luna's data on the device, and your iCloud backup if you made one.
5. Acceptable use
Do not use Luna to violate any law, infringe anyone's rights, or attempt to reverse engineer the app except where the law guarantees that right.
6. Intellectual property
Luna, including its design, code, content, and branding, is owned by John Leonardo and protected by intellectual property law. These terms grant a license to use the app only; no other rights are transferred.
7. Warranty disclaimer
Luna is provided "as is" and "as available," without warranties of any kind, express or implied, including fitness for a particular purpose. We do not warrant that the app will be error-free or that its predictions will be correct for any given cycle. You must not use Luna in any manner inconsistent with the Apple Media Services Terms.
In the event of any failure of Luna to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price for Luna to you (the purchase price is $0). To the maximum extent permitted by applicable law, Apple will have no other warranty obligation whatsoever with respect to Luna.
8. Limitation of liability
To the maximum extent permitted by law, we are not liable for any indirect, incidental, special, or consequential damages, or for any loss of data, arising from your use of Luna or from reliance on its estimates or educational content.
9. Apple-specific terms
- These terms are between you and us only, not Apple. We, not Apple, are responsible for Luna and its content.
- Apple is not responsible for addressing claims relating to Luna, including product liability, legal or regulatory compliance, or intellectual property claims.
- Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them against you.
10. Changes and termination
We may update these terms; the updated version will be posted at this URL with a new effective date, and continued use of Luna after a change means you accept it. We may discontinue Luna at any time. Your license ends if you breach these terms.
11. Governing law
These terms are governed by the laws of the State of California, excluding its conflict-of-law rules.
12. Contact
Support and questions: support@byjohnleonardo.com, or byjohnleonardo.com/support