Threema

Android

iPhone

Android Tablet

Windows Phone

iPad

Android Wear

A secure, end-to-end encrypted Swiss instant messenger with a focus on privacy.

desktop

mobile

tablet

browser

console

wearable

indie

custom

Windows

Online

Linux

Self-Hosted

Software as a Service (SaaS)

Chrome OS

Google Chrome

Firefox

Steam

Kindle Fire

Windows Mobile

Blackberry

Windows S

Wordpress

Apple Watch

PortableApps.com

Magento Community Edition

Xbox

Apple TV

Playstation

Opera

Safari

Java Mobile

Symbian S60

JavaScript

Wine

Blackberry 10

Python

Xfce

Node.JS

Facebook

Java

Slack

Haiku

Raspberry Pi

HP webOS

Microsoft Office Outlook

.NET Framework

Shopify

Chromium

Fire TV

Apps with 'Confirm messages' feature

Threema