- No internet permission. The app cannot open a connection, so what you type, the words you keep and your settings cannot leave the phone. This is not a promise in a policy; it is a permission the app does not have, and Android enforces it.
- One permission: vibration, for the optional tap feedback.
- No accounts, no sign-in, Opensolr or other.
- No analytics, no crash reporting, no ads.
- The dictionaries are inside the app. Nothing is downloaded, and no word you type is sent anywhere to be checked.
- What is kept on the phone: your settings and the list of words kept as typed, in the app’s own storage, and in your phone’s app backup if you have one.
The whole app is open source, so all of this can be read in the code: github.com/phpcip/opensolr-keys.