Features I Need :
- Totally offline
- Quick note taking, I can just tap “New” and immediately write my note
- Can save without title
- Auto save the note after pressing ‘back’
- Tags or notebook/folder for categorization
- Can export to other format like txt or pdf.
Features I want (but don’t need) :
- PIN or biometric for opening the app
- Support markdown
- Automatically set creation date as title
Features I don’t need nor want :
- Online sync/backup
- Attaching media (images/sound/etc.)
- Any other online services (AI/assistant/integration with calendar/spellcheck/etc.)
Obsidian is close.
It’s a little higher barrier to entry w.r.t. saving without a title, but it has a “Daily Note” feature that gets you very close to your quick need.
Benefit is that it’s also really powerful if you want to get fancy.