Omni Notes

Note taking open-source application aimed to have both a simple interface but keeping smart behavior.

Actually the following functions are implemented:

Material Design interface *Basic add, modify, archive, trash and delete notes actions
Share, merge and search notes
Image, audio and generic file attachments
Manage your notes using tags and categories
To-do list
Sketch-note mode
Notes shortcut on home screen
Export/import notes to backup
Google Now integration: just tell “write a note” followed by the content
Multiple widgets, DashClock extension, Android 4.2 lockscreen compatibility
Multilanguage: 30 languages supported