Terms of Use

These terms cover your use of the Petal app for iPhone ("the app"), made by Nischal Khadka ("I", "me"). By downloading or using the app you agree to them. They are written in plain language on purpose; the plain language is the agreement.

1. The licence, and Apple's standard agreement

The app is licensed to you, not sold, under Apple's Licensed Application End User License Agreement (the "Standard EULA"). These Terms of Use add the details specific to Petal. If anything here conflicts with the Standard EULA, the Standard EULA controls. Apple is not a party to these terms and is not responsible for the app, but may enforce these terms as a third-party beneficiary.

2. What the app is

Petal is a period tracker: you log the days your period starts and ends, plus optional symptoms, flow and notes, and the app shows your cycle day, predicted dates, a calendar, and simple statistics. It needs iOS 17 or later. It is free and has no in-app purchases.

3. Not medical advice

Everything Petal shows is an estimate computed from the dates you log. Predictions say "may" because they can be wrong. Petal is not a medical device, is not a contraceptive, and must not be used to diagnose, treat or prevent any condition or pregnancy. Talk to a healthcare professional about anything concerning your health.

4. Your data

The app has no accounts and collects no personal data. Your data is stored on your device and, if you turn on sync, in your private iCloud database. How that works, and how to delete it, is set out in the privacy policy, which forms part of these terms. You are responsible for keeping a backup (Export my data) if a record matters to you.

5. Content and intellectual property

The app's design, the Petal name and logo blob, and its text are my intellectual property. You may use them inside the app for your personal use. You may not copy, republish, sell or redistribute them, or use the app to build another product, without written permission.

6. Acceptable use

Beyond what the Standard EULA already says, you agree not to reverse engineer the app or interfere with its operation. If you find a bug, I would rather hear about it than have it exploited.

7. Changes to the app

I update the app and may add, change or retire features to keep it working well as iOS evolves. I may stop offering the app entirely; if I do, existing installs keep working for as long as iOS allows, and your data stays on your device.

8. Disclaimer and limitation of liability

The app is provided "as is" and "as available". To the fullest extent the law allows, I make no warranty that it will be error-free, that predictions will be accurate, or that using it will produce any particular result, and I am not liable for indirect or consequential losses arising from its use. Nothing in these terms limits any rights the law gives you as a consumer that cannot be limited by agreement.

9. Ending the agreement

You can stop using the app at any time by deleting it. I may end the licence if you materially breach these terms.

10. Changes to these terms

If these terms change, the new version is published at this address with a new "last updated" date. Continuing to use the app after a change means you accept the updated terms.

11. Governing law

These terms, and any dispute about the app, are governed by the laws of the State of Maryland, United States, without regard to its conflict-of-law rules. You and I agree that the state and federal courts located in Maryland have exclusive jurisdiction over any such dispute. Nothing in this section takes away protections you have under the consumer laws of the place where you live that cannot be waived by agreement, and nothing in it limits Apple's rights under the Standard EULA. Before going to court, write to support@twofox.app: most problems are fixable with an email.

12. Contact