trefineWho we are
Trefine is a mobile practice application published by the makers of Duogenda and Unovote. In this policy, “Trefine”, “we” and “us” mean the publisher of the application, who is the controller of the limited data described below. You can reach us at support@trefine.co.
What the application stores
Trefine stores practice data locally on your device. This may include your most recent voice take for each drill, transcripts and corrections, coaching feedback, streak counts, morning goals, your reminder preference, and evening reflections. Trefine does not require an account, does not ask for your name or email address, and does not maintain a cloud profile about you.
Voice and on-device processing
Voice recordings and coaching are processed by an artificial intelligence model that runs on your device. Recordings and the text derived from them are not transmitted to us, to our servers, or to any cloud storage service. Trefine retains only the most recent take for each voice drill and overwrites the previous take when you record again.
Culture content and requests to Wikimedia
The Culture feature retrieves short extracts from Wikipedia and Wikivoyage and rewrites them on your device. These requests go directly to Wikimedia Foundation servers and contain only a country and a topic. They do not contain your recordings, goals, reflections, transcripts, or any account identifier, because no such identifier exists. Extracts are not cached; each card is produced afresh on your device. Card text is adapted from material licensed under CC BY-SA 4.0, as described in our Terms of Service.
Content reports
When you report AI-generated content, Trefine sends us the reason you selected and the application surface where you raised it. A Decode report also sends the reported card text and its Wikipedia or Wikivoyage source identifier so we can understand what was flagged. Echo and Spark reports do not send your topic, prompt, transcript, recording, coaching, or anything you typed or said. Reports contain no account, device, or user identifier. We use them to assess content safety, relevance, and filtering; the reporting channel does not provide a reply or follow-up.
Model download
When you first set up Trefine, the application downloads its on-device artificial intelligence model from Hugging Face, a third-party model host. Because the download is large, Trefine asks for your confirmation before it begins. The request retrieves the model file and transmits no information about you or your practice.
Notifications
If you enable reminders, Trefine uses the operating system’s notification service to deliver the reminder you configured. The content of your goal recording remains on your device and is not attached to the notification request.
Data retention
Practice data is retained on your device until you delete it, until the application overwrites it in the ordinary course of use, or until you clear the application’s data or uninstall it. We operate no server-side store of your practice data, so we retain no backup from which it could be restored. Content reports are separate anonymous records held only for content-safety, moderation, and compliance work.
Legal bases for processing
Where the General Data Protection Regulation or the United Kingdom equivalent applies to you, we rely on the following bases. Delivering the practice you asked for is necessary for the performance of our agreement with you, set out in our Terms of Service. Retrieving Culture extracts, downloading the model, and receiving anonymous content reports rest on our legitimate interest in making the application work safely as described. Reminders you switch on rest on your consent, which you may withdraw at any time by turning them off. Where we must keep or disclose something to meet a legal obligation, we rely on that obligation.
Your rights
Depending on where you live, you may have rights to access, correct, export, delete, or restrict the processing of your personal data. Because Trefine holds your practice data only on your device and keeps no copy, you can exercise these rights directly and immediately: the data is already in your possession, and clearing the application’s data or uninstalling it erases it. If you believe we nonetheless hold personal data about you, write to support@trefine.co and we will respond within 30 days.
Complaints and regional rights
If you are in the European Economic Area or the United Kingdom, you may lodge a complaint with your national data protection authority, and you may object to processing we base on a legitimate interest. If you are in California, you may exercise the rights the California Consumer Privacy Act gives you, including the right to know what is collected, the right to have it deleted, and the right not to be discriminated against for exercising either. We do not sell or share personal data for cross-context behavioural advertising, and we have not done so. In every case the practical answer is the same one given above: your practice data is on your device and in your hands, not in ours.
Age and suitability
Trefine is intended for working professionals and is not directed at children. It is not offered to anyone under 18, and we do not knowingly collect personal data from anyone under 18. Because the application requires no account and collects no identifying information, we cannot determine a user’s age; the application’s data can be cleared from the device at any time.
Culture cards are drawn from Wikipedia and Wikivoyage, which are general reference works written and edited by the public. They are not age-rated, we do not curate them in advance, and the material they cover for any country can include religion, sexuality, conflict and other adult subject matter. The application asks its model to withhold such passages, but that is an automated check over third-party text and it is not a guarantee. We therefore make no claim that the content is suitable for minors.
International transfers
Model downloads use Hugging Face, Culture lookups use Wikimedia Foundation, and content reports use Supabase infrastructure operated for us. Their infrastructure may be located outside your country. Reports contain the limited anonymous data described above, not your practice content or an account identifier.
Security
Because practice data never leaves your device, its security rests on your device’s own protections: the operating system’s application sandbox, and any screen lock or device encryption you have enabled. Outbound requests are made over encrypted connections. We recommend enabling a screen lock if your recordings are sensitive to you.
External links
Trefine and this website link to other websites, including the Wikipedia and Wikivoyage pages cited as sources. Those websites are governed by their own privacy practices, not by this policy. Opening an email link uses the mail application you have chosen on your device.
Changes to this policy
We may update this policy as the application changes. The effective date above records when this version took effect. Where a change is material, we will reflect it here before it takes effect in the application. Continuing to use Trefine after a change takes effect constitutes acceptance of the updated policy.
Contact
For any question about this policy or about your data, write to support@trefine.co or visit our support page.
