1. Description of Service

Riva is a privacy-first menstrual cycle tracking application that allows users to:

• Track menstrual cycle dates and patterns
• View cycle predictions and analytics
• Receive local notifications for period reminders
• Export cycle data for personal use

The App operates entirely offline by default, with all data stored locally on your device.

2. User Eligibility

Age Requirements

• Users must be at least 13 years of age to use this App
• Users under 18 should have parental consent
• The App is designed for individuals who have started menstruation

Account Creation

• No account required for basic functionality
• The App can be used completely anonymously
• Optional cloud features (if enabled) may require account creation

3. License and Usage Rights

We grant you a limited, non-exclusive, non-transferable, revocable license to use Riva for personal, non-commercial purposes.

Restrictions

You may NOT:

• Modify, reverse engineer, or decompile the App
• Use the App for any illegal or unauthorized purpose
• Attempt to access other users' data
• Distribute or sell the App without permission
• Remove or alter any copyright notices
• Use the App to harm others or violate their privacy

Open Source

• Riva is open source software
• Source code available at: github.com/anantsarin/women_app

4. User Data and Privacy

Data Ownership

• You own all your data entered into the App
• Your cycle data remains on your device
• We do not claim any ownership rights to your personal information

Data Control

You have the right to:

• Export your data as CSV at any time
• Delete all your data from Settings
• Use the App without sharing any data
• Request data deletion (though we don't store your data on our servers)

See our Privacy Policy for detailed information about data handling.

5. No Medical Advice

Medical Disclaimer

• Riva does not provide medical advice
• Predictions are estimates based on past cycles
• Consult healthcare professionals for medical concerns
• Do not rely on the App for birth control

Limitation of Medical Use

The App is not intended to:

• Diagnose any medical condition
• Replace professional medical advice
• Serve as a contraceptive device
• Detect pregnancy or fertility

Emergency: If you experience a medical emergency, call your local emergency services immediately.

6. Accuracy and Reliability

Predictions

• Cycle predictions are estimates only
• Based on historical data you provide
• Individual cycles vary naturally
• Accuracy depends on data quality and regularity

No Guarantees

We do not guarantee:

• Prediction accuracy
• App availability at all times
• Data backup or recovery
• Compatibility with all devices

7. Notifications and Reminders

• Reminders are sent locally on your device
• No internet connection required
• You can disable notifications in Settings
• Battery optimization may affect notification timing

8. Third-Party Services

Riva currently operates 100% offline with no third-party services.

If enabled in future updates:

• Google Sign-In (for optional cloud backup)
• Firebase (for optional data sync)

Third-party services have their own terms and privacy policies.

9. Updates and Modifications

We may update the App to add new features, fix bugs, improve performance, and enhance security. Updates are provided through Google Play Store.

We reserve the right to modify these Terms. Changes will be indicated by the "Last updated" date. Continued use after changes constitutes acceptance.

10. Termination

By User

You may stop using the App at any time by uninstalling it. This removes all local data. No residual data remains on our servers (we have none).

By Us

We reserve the right to discontinue the App with reasonable notice, modify features, or remove the App from distribution platforms.

11. Disclaimers

THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED.

We disclaim all warranties, including merchantability, fitness for a particular purpose, non-infringement, accuracy, and uninterrupted operation.

You use the App at your own risk. We are not responsible for data loss, device compatibility issues, or OS-related problems.

12. Limitation of Liability

TO THE FULLEST EXTENT PERMITTED BY LAW, WE SHALL NOT BE LIABLE FOR any indirect, incidental, special, consequential, or punitive damages, or loss of profits, data, use, or goodwill.

Some jurisdictions do not allow limitations on implied warranties or liability, so the above limitations may not apply to you.

13. Indemnification

You agree to indemnify and hold harmless Riva, its developers, and contributors from any claims, damages, losses, or expenses arising from your use of the App, violation of these Terms, or violation of any rights of another party.

14. Geographic Availability & Compliance

The App is available globally through Google Play Store, and you are responsible for complying with local laws when using the App.

For California Residents

California residents have additional rights under the CCPA. See our Privacy Policy for details.

For EU/UK Residents

EU and UK residents have rights under GDPR. Since we don't collect personal data, most GDPR provisions don't apply, but you have full control over your local data.

For Minors

• Obtain parental consent before using the App
• Parents/guardians should review these Terms and the Privacy Policy

15. General Provisions

Severability: If any provision of these Terms is unenforceable, the remaining provisions remain in full force.

Entire Agreement: These Terms, together with the Privacy Policy, constitute the entire agreement between you and Riva regarding the App.

Waiver: No waiver of any term shall be deemed a further or continuing waiver.

16. Contact Information

If you have questions about these Terms of Service:

• Email: rivatheflow@gmail.com
• GitHub: github.com/anantsarin/women_app

We aim to respond within 7 business days.

Acknowledgment

By using Riva, you acknowledge that you have read, understood, and agree to be bound by these Terms of Service.

Riva — Track your natural flow
Version 1.0.0 · Last updated: February 15, 2026