The TreePad family
is the basic program and contains the features you will need most of all.
offers all the features of TreePad PLUS together with encryption and password protection for text data. Encryption for images is not yet supported.
Supports huge databases: 384 or 12 Gigabytes of formatted text, images, attachments, opens 8 databases simultaneously, export to Website, Spell checker, Thesaurus, auto-dial, send email, etc. Database encryption is not yet supported.
All of the features of the single-user version, in addition to multi-user database-access.
TreePad SAFE for Linux and TreePad Lite for Linux
See the online Feature chart for a full comparison of different versions.