Cryptee is a cross platform, encrypted and secure home for your private documents, notes, files and photos.
You can take notes with photos, videos and audio in Cryptee and even attach a PDF or any other filetype.
It uses a strong client-side AES256 zero-knowledge encryption and of course has all the features you'd expect like live sync with unlimited devices, rich document editing, todos, markdowns, hotkeys, code highlighting, latex, embeds, attachments, support for PDFs etc.
And for those rare moments you might need, it has deniability features built in. More Info »
Secure data backups, including two disaster backup servers in Switzerland and Sweden, alert mechanisms against backend tampering,
Based in Tallinn, Estonia, where the government runs on blockchain. It also supports Smart ID and Mobile ID logins specifically for E-Residents!