Notesnook
8.8#6 in note-taking appsFrom $1.99 a monthFree planAndroidiOSWebLinux
VisitNotesnook suits people who want encrypted notes across desktop, mobile, and web, including users who need note sharing or inbox integrations. Its free plan may suit users comfortable with monthly attachment and file-size limits.
Safe Notes suits individuals needing offline storage for private data and security utilities on Windows or Linux. Commercial users need the maker’s separate commercial version.