End to end encrypted To-do list, Calendar, Contacts apps?

[PerfectPeach]

Anyone knows any free end to end encrypted to-do list, calendar and contacts app for Android? It doesn’t need to have all three in one app, even I prefer to be separate app for each. I couldn’t find 4096-bit RSA zero access information grade one. Maybe you guys know anything?
I’m a privacy fan and looking for these just to be safe!

 

[Hadron]

Well the most private will be one that doesn't sync at all, which many apps can provide.

Otherwise the question is who do you want to sync with and do they support end to end encryption (and, of course, do you trust them to respect your privacy and keep your data secure)?

 

[PerfectPeach]

Hiya @Hadron,


Thanks. But it need to be encrypted with 4096-bit encryption as well. If it doesn't sync, it can have an encrypted export import feature locally, but at least 4096-bit and unbreakable encryption. For calendar, contacts and to-do list.
Is anyone knows any?

Thnx