I guess it's technically not "public" but then again it's shipping your most private thoughts to WhatsApp and an unknown person and "privacy" isn't mentioned on the landing page once.
Personally I can recommend DayOne which is built by a trusted entity Automattic (Wordpress etc.) and they do have a big focus on privacy: https://dayoneapp.com/privacy-pledge/
End to end encryption is not really a pledge. That is expected of companies like such. Nevertheless, their promise to not sell any data is interesting. If they don’t sell data (which cannot be sold anyways for an E2EE system) I wonder why they collect so much data related to one’s identity as disclosed by them in the App Store Page? Is the behaviour of journaling then becomes a data point to be sold by these companies? Makes you wonder. And as mentioned in their privacy policy page, they are also not except from disclosing information the the US Govt if mandated by a warrant.
Having served in the military once upon a time, it always makes me chuckle. Now, I didn't do much related to information technology or security, but "unbreakable" is not a term I ever associated with military equipment.
I guess it's technically not "public" but then again it's shipping your most private thoughts to WhatsApp and an unknown person and "privacy" isn't mentioned on the landing page once.
Personally I can recommend DayOne which is built by a trusted entity Automattic (Wordpress etc.) and they do have a big focus on privacy: https://dayoneapp.com/privacy-pledge/