iPad + Apple Pencil + OneNote (encrypted end-to-end)
If you lose your onenote encryption key, your data is lost forever.
Another solution is Apple Notes with Advanced Data Protection turned on for your Apple ID. That encrypts your entire iCloud Drive with your encryption key and again if you lose your key data is gone; although there are some recovery options which require a trusted contact.
If you lose your onenote encryption key, your data is lost forever.
Another solution is Apple Notes with Advanced Data Protection turned on for your Apple ID. That encrypts your entire iCloud Drive with your encryption key and again if you lose your key data is gone; although there are some recovery options which require a trusted contact.