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.
Notyra may suit people who want private notes stored locally and available offline, with optional encrypted cloud sync. It supports desktop and mobile platforms and requires no account to begin.