This app tries to provide unpredictable character or number sequences (phrases aka 'random password generation') upon chaotic swipe movements on touch screen as well as device movements reported from accelerometer and gyroscope.
It is highly assumable that the result is neither reproducable nor recalculable.
As you may now store the generated stream or phrases you will need write access under API 29 or lower.
The tool does not pretend any extraordinary, additional randomness apart of finger movements and is surely not an encryption in any kind.
Please note, some statistics may be inaccurate after changing settings (re-configuration) and may require a reset in such a case.
If you wish you may now store the generated stream or phrases.