Quote from: fslmn on January 25, 2024, 09:40:05 PM

What you think? Is there anything like that exists?

There is no need to spend time creating something like this when you already have apps with that feature.
For example you can use Simplex chat app that works both on mobile and desktop computers, and it has integrated private notes.
You can also use it for private chatting, audio/video calls, and you don't need to use any phone number or other identifier.

Quote from: fslmn on January 31, 2024, 05:31:45 PM

I believe many apps they still can access your information without permission. This one wouldn't. If you forget your keys, that's it.

Simplex is open source and it can't use any information.
Database can be encrypted, and if you lose passphrase you lose your profile.