28 Like

Kontalk Messenger

A fully open source short message service featuring encrypted communication. Created by Kontalk devteam

Free Open Source
Android
Self-Hosted

Kontalk is a secure instant messenger, allowing you to send and receive text, image and voice messages (other file types coming soon) to and from other Kontalk users completely free of charge.

Kontalk Features:

- Your phone number is your ID. No usernames or passwords.
- It automatically finds other Kontalk users by looking at your address book, making it even easier to start chatting on Kontalk with your friends.
- End-to-end encryption ensures safe and private conversations, so that only you and the person you are talking to can read them.
- Both client-to-server and server-to-server channels are fully encrypted. Users can be safe with end-to-end encryption — servers can't decrypt it.
- Your and all phone numbers used on the network are irreversibly encrypted.
- It supports multiple devices, making it very easy to start chatting on your phone and continue the conversation on your tablet.
- Based on open standards: XMPP and OpenPGP.... More Info »

Kontalk Messenger is listed in

Interesting and open-source Android apps and Privacy Products

Links to official Kontalk Messenger sites

Facebook Twitter GitHub

Features

Encrypted chat End-to-End Encryption Messaging Add a feature

Categories

Security & Privacy Social & Communications

Tags

based-on-phone-number instant-messaging openpgp secure-messaging xmpp-clients

Kontalk Messenger was added by haeckle in Oct 2013 and the latest update was made in Apr 2019. The list of alternatives was updated Jul 2020. It's possible to update the information on Kontalk Messenger or report it as discontinued, duplicated or spam.

MORE APP INFO Official website

Reviews 0

Alternatives to Kontalk Messenger for all platforms with any license

Telegram

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free. It is like SMS, but more powerful.

Free Mac Windows Linux Web Windows Mobile ... Android iPhone Blackberry Android Tablet BSD Windows Phone iPad Apple Watch Android Wear PortableApps.com Haiku FreeBSD
Stickers Chat Bot Lightweight Cloud sync ... Encrypted chat End-to-End Encryption Channels Integrated File Sharing Secret chats Ad-free Bots Night mode/Dark Theme Privacy focused Large File Transfer Animated stickers Group chat Multi Device Support Persistent History Public groups chat Security & Privacy Security focused Voice Call Auto-delete Cloud based Custom Backgrounds Custom themes Customizable Themes Data-encryption Encrypted calls Instant view Portable Private Chat Switching between platform Sync across Devices Anonymous groups Anonymous Secure Filesharing Built-in Photo editor Chat history Chat organizer Sync Contacts Encrypted VoIP calls Encryption File transfer Folders Free Speech GPS Location Tracking IFTTT integration In-Game Overlay Integrated File Sharing Messages in cloud Messaging Multiple languages Multiple Account support Works Offline Based on phone number Photo Sharing Private messaging Progressive Web App Push to talk Scheduled messages Search by tags Self destructing messages Share Videos Support for Themes Two factor authentication Voice chat Voice messages Add a feature

1463 Like
Signal

TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in...

Free Open Source Mac Windows Linux Android iPhone ... Android Tablet iPad Chrome Ubuntu Touch
End-to-End Encryption Encrypted chat Security focused Privacy-friendly ... Security & Privacy Encrypted Connection Privacy focused Self destructing messages Video calling Ad-free Client side encryption Electron based Encrypted calls Encrypted VoIP calls Forward Secrecy Night mode/Dark Theme SMS Messaging Video calling Voice Call Color coding Encryption Group chat Group Messaging Integrated File Sharing Mobile friendly Works Offline Protected by Password Based on phone number Private messaging File Sending Voice chat Voice messages Add a feature

600 Like
WhatsApp

With WhatsApp, you'll get fast, simple, secure messaging and calling, available on phones all over the world.

Free Mac Windows Linux Web Android ... iPhone Android Wear KaiOS
End-to-End Encryption Custom Backgrounds Forums Group chat ... Mobile friendly Stickers Encrypted chat Integrated File Sharing Messaging Based on phone number Video calling Voice chat Voice messages Add a feature

758 Like
Viber

Viber is a mobile application that lets you make free phone calls and send text messages to anyone who also has the application installed. .

Freemium Mac Windows Linux Android iPhone ... Windows S Android Tablet Windows Phone iPad Blackberry 10 Apple Watch
Animated stickers Call Transfer Desktop Sharing Group chat ... Hidden chat Multiple languages Phone calls Push to talk Secret chats Video calling Voice Call Voice chat Add a feature

321 Like
Zulip

Zulip is a group chat app in which messages are threaded by topic, helping you have long-running, organized conversations. Zulip's threading makes it easy for people...

Free Personal $ $ $ Open Source Mac Windows Linux Web Android ... iPhone Android Tablet BSD iPad Self-Hosted
Threaded Conversations Group collaboration Group chat Chat Bot ... Chat organizer Community based GitHub integration Integrated File Sharing Live topics MarkDown support Secure Chat Self-hosted in intranet or private cloud Team Collaboration Todos Add a feature

159 Like
Facebook Messenger

Facebook Messenger is a faster way to message. Reach friends right on their phones, get and send messages fast, message everyone at once and more. Top Features: •...

Free Windows Web Android iPhone Blackberry ... Windows S Android Tablet Windows Phone iPad Apple Watch Android Wear
Group chat In-app Money Transfer Messaging Private messaging ... Video calling Voice Call Add a feature

218 Like
Conversations

Conversations is a privacy focused, open source XMPP Texting [Jabber] client for Android 4.0+ smart phones with wife-approved easy encryption [OTR, OMEMO, or GPG]. ...

Free Open Source Android Android Tablet
Decentralized End-to-End Encryption Encrypted chat Picture sharing ... Encrypted Connection Chat Bot Gpg encryption Group chat Group Messaging Intuitive Interface OTR Self destructing messages Audio Chat Federated File sharing Messaging OMEMO Public groups chat Secure Chat Security & Privacy Xmpp Add a feature

78 Like
Xabber

Open source Jabber (XMPP) client with multi-account support, clean and simple interface. Being both free (as in freedom!) and ad-free, Xabber is designed to be the best...

Free Open Source Web Android
Encrypted chat Xmpp Add a feature

47 Like
Know any more alternatives to Kontalk Messenger?
Suggest an application to this list
Disa

Disa is your new messaging hub. Conversations from different services can seamlessly be joined together, or disbanded within seconds.

Free Open Source Android Android Tablet Kindle Fire
Extensible by Plugins/Extensions Messaging SMS Messaging Telegram ... Unified communications Unified messaging Whatsapp integration Add a feature

22 Like
Telegram X

An alternative Telegram client based on TDLib, with higher speed, slicker animations and experimental features. The goal of Telegram X is to reinvent Telegram and...

Free Android iPhone Android Tablet Telegram iPad
Ad-free Bots Channels Chat Bot ... Cloud based Cloud sync Integrated File Sharing Stickers Support for Themes Voice Call Add a feature

18 Like

Kontalk Messenger Comments

Echo echo ... Feels empty in here

Maybe you want to be the first to submit a comment about Kontalk Messenger? Just click the button up to your right!