Cryptee - Cryptee is a safety and privacy focused, encrypted and cross-platform personal data storage service. You can write personal documents, notes, journals, store photos and all sorts of other files.

Better Notes - Simple notes app that ties notes together with #hashtags

hat.sh - Free, fast, secure and serverless file encryption

Paper - Super-clean writing space with a lot of configurability that stays out of sight when you don’t need it.

Thangs Sync - Secure, 3D-native revision control in the cloud

Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.