Top 4 Open-Source Alternatives to SMS Plus

Product categories

Chat Communication Email Email Clients Enterprise Communication Group Chat & Notifications Hosted Email Instant Messaging LMS Messaging Tool

Summary

The top open-source alternatives to SMS Plus are Tutanota, OpenKeychain, and Signal. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Tutanota Landing Page
1

Tutanota

Get your encrypted mailbox for free.
Pricing:
- Open Source
#Email #Email Clients #Enterprise Communication 177 social mentions
OpenKeychain Landing Page
2

OpenKeychain

OpenKeychain helps you communicate more privately and securely.
Pricing:
- Open Source
#Email #Tool #Communication
Signal Landing Page
3

Signal

Fast, simple & secure messaging. Privacy that fits in your pocket.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 180 social mentions
Wickr Landing Page
4

Wickr

Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender...
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 5 social mentions