If you use a biofeedback hypno app (e.g., Muse or Flowtime ), the save data includes raw EEG brainwave data or heart rate variability (HRV). This is perhaps the most valuable data, as it maps your unique path to Theta and Delta states.
It happened after a system update. When Leo tapped the app icon, a cold dialogue box appeared:
Elias.
Be careful when downloading save files from YouTube descriptions or unofficial forums, as these can sometimes contain malware disguised as data files.