Available products


for the user, sMessenger comes in the form of an app that can be installed on an Android phone:

  • When communicating with other users of sMessenger, you can send messages containing text or pictures. Those messages will never leave the servers of sMessenger and no mail server is involved. (some providers call this "chat")
  • When communicating with contacts not using sMessenger, you only can send text messages. Those text messages are standard eMail messages and the content of the message is encrypted using standard PGP.
  • All messages are saved in the internal database of sMessenger and are protected with a password and an additional key.
  • You can save notes containing text or picture. Those notes are also saved in the internal database of sMessenger.
  • Your contacts are also saved in the internal database of sMessenger.
  • In case of loosing your phone, you can send a preset message to your account making all messages, notes and contacts unaccessible.


sMessenger has some build-in functions to verify to help you properly secure your phone. However, make sure to read and understand the information you find in  "Security" and "Threat Model" on this website.

Google Play Store

this is a good option for people who have a reasonable working knowledge of Android, how to install an app on Android and how to properly secure a phone:

  • You can download the app from the Google playstore yourself.
  • sMessenger comes with build-in help functions to help you installing and using sMessenger.
  • You can select your own username.
  • You can use sMessenger for free for a period of 7 days.

Preinstalled phone

If you are uncertain how to install sMessenger or how to configure your phone, we can deliver a phone with sMessenger preinstalled on it:

  • This is a normal Android phone and as such can also be used for making normal phonecalls, normal SMS etcetera.
  • You can provide a SIM-card yourself, or use a prepaid SIM-card.


Special cases

sMessenger is a flexible system. If You have special needs, please let us know and we will help you the best we can.


Some special needs might be:

  • Installing sMessenger on special phones.
  • Help when installing sMessenger on your private phone.
  • If you are a company or a group of people, you can have your own domain name.
  • You can have your own "private system.