Secure note taking app

I’m looking for an alternative note taking app which encrypts the data and has the ability to use pictures. It should also sync to mobile. I know there’s turtl.it but I’m not sure if it will be developed continuously and it also has some flaws e.g. can’t open pics on mobile app. Basically I’m looking for something like standardnotes but with picture support on mobile.

Does anyone have an idea?

Found here