1. Who we are
Bohdan Dev (“we”, “us”) provides Formula Visual (the “App”). Contact: bohdankvtdev@gmail.com
2. What the App does
Formula Visual is a visual formula calculator. You place numbers, operators, and named formulas on a board, connect them, and read a written solution. Everything stays on your device. There is no account and no cloud sync.
The App is a calculation tool only. It does not provide financial, academic, medical, or professional advice.
3. Data we process
- On your device: Calculator graphs, node values, and preferences you enter are stored locally on this device.
- No account: The App does not offer sign-in, guest cloud accounts, or cross-device sync. We do not operate a calculator backend for your board.
- Advertising: The App may show banner ads (Google AdMob). Ad partners may collect device identifiers and usage data according to their policies. You can limit ad tracking in your device settings.
We do not sell your personal information.
4. Legal bases (EEA / UK)
Where GDPR-style rules apply, we rely on contract (to provide the App), legitimate interests (security, improvement, support), and where required consent (for example, ad tracking permission on your device).
5. Retention and deletion
We keep information on your device until you erase the board or uninstall the App. You can erase local data in Settings. We do not store your calculator graph on our servers.
6. Security
Your board stays on this device. We do not upload the graph to a Formula Visual server. No method of storage is 100% secure.
7. Children
The App is not intended for children under 13 (or the minimum age required in your region). Do not use the App if you are under that age.
8. International transfers
The board itself is not sent to us. Advertising partners such as Google may process device identifiers outside your country under their own policies.
9. Your rights
Depending on where you live, you may have rights to access, correct, delete, export, or restrict processing of your personal data. Contact bohdankvtdev@gmail.com to exercise these rights.
10. Changes
We may update this policy. We will post the new version at this URL and, where appropriate, notify you in the App.
11. Related pages
See also our Terms of use and Support page.