TheNote.app keeps chains of private and public notes for free:
• Save private notes with photo, video, generic file attachments and links
• Offline notes creation and search
• Pin notes on the first screen of your storage
• Background sync between devices
• Support for an unlimited number of devices for one account
• Use web interface at https://thenote.app to edit your notes on the big desktop screen
• Share notes on the web for free
• Ads-free
• RTL support