Trisine Privacy Policy

Effective date: 2026-11-03

Trisine is a biorhythm diary: you enter a birth date, and the app calculates the physical, emotional and intellectual rhythm curves for you and the family or friends you add, shows short daily notes, lets you log how you felt each day, compares two people's rhythms, and offers a morning reminder and a home screen widget (the "app"). It is provided by DDJ A1 ("we", "us"). This policy explains what data the app handles and how. Trisine has no account system and we do not run a server for it.

Data stored on your device

The names, birth dates and optional birth times of the profiles you add (yours and anyone else's), the daily feelings you log, and your settings (theme, reminder time, chart range) are stored only on your device. All rhythm calculations happen on your device. This data is not sent to us. Uninstalling the app deletes it from your device. If device backup is turned on, Android's standard app backup may include this data in your own Google account backup. That backup is controlled by you and Google, not by us.

If you add other people, please only add people who are comfortable with you storing their name and birth date in the app.

Export and sharing

When you use Export (CSV), the app writes your feeling log to a file at the location you pick with the Android file picker. When you use Share, the app creates an image or text of the result you chose and hands it to the app you pick in the Android share sheet. The app does not upload these files anywhere itself; what happens next is up to you and the app you choose.

Permissions the app asks for and why

• Notifications (optional). Used for the morning rhythm summary and an evening reminder to log how you felt. You can decline and every feature still works.
• Run at startup. Lets reminders and the home screen widget come back after your phone restarts or the time zone changes.
• Vibration. Used only for reminder notifications if you keep notification vibration on.
• Internet access and the advertising identifier (AD_ID). Used only by the advertising components described below. Everything else in the app works offline.

The app does not request the camera, storage or media permissions, the microphone, location, health sensors, or your contacts.

Information collected automatically

When you use the app, third-party SDKs used for advertising may collect some information automatically, including:

• Your device's Internet Protocol (IP) address, which may be used to estimate your approximate (general) location
• Device or other identifiers, such as your device's advertising identifier (Advertising ID) and app set ID
• App interactions, such as session time, screens viewed, and ad views and taps
• Crash logs and diagnostic information, such as your device's operating system and model, and ad performance data

The advertising SDK collects this information and shares it with Google (AdMob) and its advertising partners for advertising, analytics, fraud prevention, security and compliance. It is encrypted in transit. The app itself does not send the profiles, birth dates, feelings or other app data off your device, and we do not link the advertising data to them.

Advertising

The app shows advertisements from Google AdMob:

• a banner at the bottom of the screens (not on the profile editing screen)
• an ad when the app starts from the launcher
• full-screen ads only after you finish something: after you save a profile, when you open a compatibility result, and after you export your log
• an ad in the exit dialog
• optional video ads you can choose to watch from Settings to see fewer ads for 24 hours

A full-screen ad never appears while you are logging a feeling, moving between dates or tabs, or using the widget. To serve ads, AdMob and its partners may access your device's Advertising ID and the information described above. In the European Economic Area (EEA), the United Kingdom and other regions where required, the app shows a consent form through Google's User Messaging Platform (UMP) before personalized advertising data is used. If you decline, you are shown non-personalized ads instead. You can reset or limit ad personalization at any time in your device settings (Settings → Google → Ads), and you can change your consent choice from the app's Settings screen.

For more information on how Google uses data when you use partners' apps, see https://policies.google.com/technologies/partner-sites.

For reference and fun

Biorhythms are a traditional calculation based on fixed cycles from your birth date. They are not a scientifically proven prediction and not medical advice. Do not use the app to make health, safety or medical decisions.

Children

Trisine is a general-audience app and is not directed to children under 13. We do not knowingly collect personal information from children.

Your rights

Your app data exists only on your device, so you control it directly: you can edit or delete profiles and logged feelings in the app, and uninstalling the app removes everything the app stored. Depending on where you live (for example under the GDPR in the EEA/UK or the CCPA in California), you may also have rights over data processed by advertising SDKs. You can exercise your ad choices through the consent form and your device's ad settings described above.

Changes

We may update this policy. Material changes will be reflected on this page with a new effective date.

Contact

Questions? Email bloodturtle@naver.com.