There is a new tool available for Sparkers: Delta Chat Desktop.
What is Delta Chat?
Delta Chat is like Telegram or Whatsapp but without the tracking or central control. Delta Chat does not need your phone number… Delta Chat doesn’t have their own servers but uses the most massive and diverse open messaging system ever: the existing e-mail server network.
Chat with anyone if you know their e-mail address, no need for them to install DeltaChat! All you need is a standard e-mail account.
It is a cross-platform application so can be installed on (minimal requirements): Android 4.1 Jelly Bean or iOS 11, iPhone 5s or iPad 5/Air/Mini or Windows 7, macOS 10.10 Yosemite, Ubuntu 12.04, Fedora 21 or Debian 8 or compatible systems.
Installation 64 bit only:
sudo apt update
sudo apt install deltachat-desktop
or via APTus-> IM tab.
The project page : delta.chat/en/
Copyright © 2019 DeltaChat contributors.