I use two open source note taking apps on my Android device. Anything that needs to be protected and private stays in Standard Notes. Everything else goes into

I use two open source note taking apps on my Android device. Anything that needs to be protected and private stays in Standard Notes. Everything else goes into Markor. Markor strikes an amazing balance between features and simplicity. Syncthing handles sync. Standard Notes does fine for the other stuff, but as said by other commenters, even it's Extended editor options are lacking, and there's also no convenient way to "share" content from another app into Standard Notes. People have been asking for that feature for years, but bizzarely it seems never to have been prioritized.