I built Notebag because I got a bit sick of other note taking apps breaking my workflow. I wanted something that I could quickly show and hide and that would allow me to jot down Markdown, so I could have a bit of structure.
And then Notebag happened! I hope you'll find it useful.
*edit: the FAQ mentions that the notes are encrypted and saved as markdown (https://notebag.app/faq/)
Is there any way to sync notes between devices? What happens after the 7-day trial is up? Are there any plans for mobile/web version to allow for entries on the go?
As for the trial ending: You will have the possibility to export all your notes as Markdown once the trial ends, so you're not locked in.
A mobile version is also planned for the future, currently researching on the best approach!