Download ChatS apk 4.5 free for Android smartphone

5 Feb

Posted by in Communication | Feb. 5, 2016 | 2 Comments

Apk file size: 2.2 MB

Chat with your friends securely and secretly by self-encrypted communication.
Easy to use messenger tool that use encryption/decryption techniques to only send coded messages free via the web.

You chose the encryption key, stored encrypted on your device using a Password potentially stored nowhere, and that only you know.
Send the messages encoded, and decoded by a PasCode only you and your friend, the recipient, knows.
We don't have these PasCode's so we can't see any details of your messages or who they are for, and we don't want to because we are not planning to scan your data so we can give you better ads.

We recommend that the PasCode used for messages between friends/groups is communicated only verbally face to face, or is one the 2 of you know without saying it directly, and not sent by any electronic means of communication.

How to send a message:
- You and your friend downloads ChatS from Google Play
- You set it up by filling in a Display Name (used by your friends as Contact Name) and Password (used to encode what is stored on your device) and press Register Now
- You select Contacts, then Create Contact and enter your friends Display Name as the contact Display Name and a mutually agreed PasCode. Your friend does the same entering your Display Name and the same mutually agreed PasCode in his/her contacts.
- You select Sent Messages and Create Message, write your message subject and text as you would a normal email/sms, select your friend as the recipient (by long clicking/pressing on his/her name in the Out list to move it to the In list). Press Encrypt and then Send. ChatS will encrypt the message and send it to the server.
- Your friend selects his/hers Received Messages, presses Refresh and his/her ChatS will check for new messages, download the message from you, decrypt it and when selected display the original text.

There is Contact Group option for multi way conversations

The decrypted message will only be visible on yours and your friends device and the PasCode to decrypt it will never leave your devices.
ChatS use a new encryption technique specifically developed for this app and do not depend on standards neither regarding formulas nor keys.

This project is a commercial project financed by ads (Just 1 small line on the Main Page, nothing among the messages). If you don't like ad's there is a paid no ad version called ChatSy available from on Google Play.

ChatS is adjustable to the following languages by pressing the button marked EN:
English, Norwegian, Danish, Swedish, German, French, Italian, Spanish, Portuguese, Dutch, Chinese, Polish, Russian, Japanese, Hindu and Arabic.
ChatS is also available for Windows, Linux and Mac from

For more info this or our other apps, please visit our website:
email: [email protected]


All Apps by
ChatS - encrypted messenger for secure communication via self created keys - FREE
ChatSy - as above, but without ads for increased security
JoggerLogger – record your run, graph your speed, share on Facebook – FREE
JoggerLoggerPro – adds Lap Timer, Delayed Start, Map of Route and Finding Friends
GroupTracker – find your friends – FREE Trial for minimum 30 days
ActionReporter – records speed, g-force, altitude, % incline, direction - FREE 
WannaPubCrawl – ultimate party/event organizer/advertiser w/advanced invitation options  
WannaGreet - automated greeter for scheduled sending of greetings/meessages
MarineLoggerPlus – records your trip with distance, course, speed, displays path on map
MarineChimer w/shift display, chimes every ½ hour like a Ships Bell


Messages sent can be sms type or longer telegrams,
or other types of electronic communication that needs to avoid prying ears,
and secrets that want to avoid enigma type cracking or listening in.
ChatS uses very low bandwidth and very fast in action,
working via a web/cloud service, but storing in protected form locally

Whats new

    Version 4.5: Fixed reinstall issue
    Version 4.4: Added language detection for first install
    Version 4.3: Improved automated screen sizing
    Version 3.7: Added Encrypt before Send for better visualisation of the process
    Version 3.6: Install on external storage option
    Version 2.5: Fix for error when contact comment field is empty
    Version 2.0: Simplified first time setup, password change fix, contactlist send fix part of our Communication and have average installs from 1000 to 5000. Last Update Feb. 5, 2016. Google play rating is 71.7647. Current verison is 4.5. Actual size 2.2 MB.

Download chats-1.apk 2.2 MB


Gerardine Egan

Looks secure Nice to be able to see the encryption in action, using a file manager

Miss London

Didnt know wheere 2 go 2 strt chattin'.

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