Descriptions :Threema is the world's most popular secure messenger and protects your data from hackers, businesses and governments. Threema can be used completely anonymously, enabling consistently encrypted voice calls, and offers all the features expected of a state+of+the+art Instant Messenger. With Threema Web, you can also use Threema from your desktop.
PROPERTIES:
+ Write text and send voice messages
+ to phone
+ Share videos, pictures and places
+ Send any file (PDF, animated GIF, MP3, Doc, ZIP, etc.)
+ Use Threema Web to chat from your desktop
+ Create groups
+ Conduct surveys with the unique survey feature
+ Choose between a dark and a light theme
Required Android Versions : Ice Cream Sandwich [4.0.3–4.0.4] - Jelly Bean [4.1–4.3.1] - KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]