Features
Fully FOSS
Contains no proprietary blobs, unlike Signal.
Encrypted
Protects database with passphrase encryption.
Automatic locking
Locks down the app automatically when you are gone for a set period of time.
RAM Shredding
Securely shreds sensitive data from RAM.
Backup scheduling
Automatic backups at daily or weekly interval.
Tor support
Supports SOCKS proxy and Tor via Orbot.