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Formulus — Terms of use

Effective date: 4 June 2026
Last updated: 4 June 2026

These terms apply to your use of the Formulus mobile application distributed by Open Data Ensemble (“ODE”, “we”, “us”). By installing or using Formulus, you agree to these terms. If you do not agree, do not use the app.

1. The application

Formulus is client software for offline-first, form-based data collection. It connects to Synkronus servers that you or your organization configure. ODE provides the app; it does not operate your field data server unless your organization explicitly uses ODE-hosted infrastructure under a separate agreement.

2. Your responsibilities

You agree to:

  • Use Formulus lawfully and in line with your organization’s policies
  • Keep your login credentials confidential
  • Configure sync servers you are authorized to use
  • Ensure you have permission to collect and sync any personal or sensitive data required by your project
  • Comply with applicable data protection laws in your jurisdiction

You are responsible for data you collect and for the Synkronus server operator’s handling of that data.

3. Accounts and authentication

Sign-in uses a username and password for the Synkronus server you configure. ODE does not provide in-app registration; accounts are created by your server administrator.

Account and server-side data deletion are described in Account and data deletion.

4. Privacy

Our handling of information is described in the Formulus privacy policy. That policy is incorporated into these terms by reference.

5. Open source software

Formulus is part of the open source Open Data Ensemble project, licensed under the MIT License unless otherwise noted for bundled components. Source code is available on GitHub; use of the source is subject to the license and separate development terms.

6. Disclaimers

Formulus is provided “as is” and “as available”, without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, and non-infringement, to the extent permitted by law.

We do not warrant uninterrupted operation, error-free sync, or compatibility with every device or server configuration.

7. Limitation of liability

To the maximum extent permitted by law, ODE and its contributors are not liable for indirect, incidental, special, consequential, or punitive damages, or for loss of data, profits, or business arising from your use of Formulus or your sync server.

Your sole remedy for dissatisfaction with the app is to stop using it and uninstall it.

8. Third-party services

  • Google Play — if you install from Play, Google’s terms and policies apply to the store and its services.
  • F-Droid — if you install from F-Droid, that distribution channel has its own policies.
  • Your Synkronus server — operated by you or a third party; not controlled by ODE.

9. Changes

We may update these terms. The “Last updated” date will change when we do. Continued use after changes constitutes acceptance of the updated terms where permitted by law.

10. Governing law and disputes

These terms are governed by the laws applicable to Open Data Ensemble’s place of establishment, without regard to conflict-of-law rules. Courts in that jurisdiction may have exclusive jurisdiction over disputes arising from these terms, unless mandatory consumer protection laws in your country require otherwise.

11. Contact