Alternatives to Threema

Telegram

Telegram is a cloud-based instant messaging and voice over IP service developed by Telegram Messenger LLP. It is a cross-platform messaging app for smartphones, tablets, and desktop computers. It is a secure, fast and free messaging and voice over IP service. Telegram is designed...

Cloud data instead of private data

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Signal

Signal is a secure, private messaging application for all of your devices. It allows you to send text messages, voice and video calls, and multimedia messages to other Signal users. Signal also includes end-to-end encryption, which means that no one but the sender and the receive...

Good independent cryptography.

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Slack

Slack is a business and enterprise communication platform used by millions of people around the world. It is designed to help teams stay productive and connected. Slack provides an easy-to-use platform for users to communicate with each other in real-time, with features such as g...

Tox

Tox is a free, secure, open source, and decentralised instant messaging and file sharing application. It allows you to communicate with friends over encrypted chat, voice call, and video calls, and securely share any type of file, large or small. With Tox, users can connect with ...

WhatsApp Messenger

WhatsApp Messenger is an app that allows users to send and receive messages, make voice and video calls, share photos, documents, location and other media, all over the internet. It is available for both iOS and Android devices. WhatsApp Messenger is primarily focused on securit...

Riot.im

Riot.im is an open source, secure, and decentralized communication platform for teams, communities, and individuals. It can be used as a communication tool for anything from remote work collaboration to video conferencing, text chat, voice calls, and file sharing. Riot.im is desi...

Wire

Wire is a secure and easy to use messaging, voice and video calling application. It allows users to connect with anyone in their contact list, regardless of the device they are using. Wire also offers end-to-end encryption to keep conversations secure and private, and users can a...

Conversations

Conversations is a secure and private messaging app that allows users to communicate with each other in real time. It is designed to make it easy to keep track of conversations and to ensure that all messages are securely backed up and synced across multiple devices. Conversation...

Zulip

Zulip is an open source, real-time collaboration software and application designed to help teams communicate more effectively and efficiently. It provides an array of features such as instant messaging, threaded conversations, file sharing, and searchable archives. Zulip also off...

ChatSecure

ChatSecure is an open-source, secure and private instant messaging app for iOS and Android devices. It allows users to communicate securely over any network and is compatible with many other messaging protocols. ChatSecure uses end-to-end encryption to protect messages from being...

Briar

Briar is a secure file sharing application and software designed to help users securely exchange messages and files. It is an open source platform, which means the source code is publicly available for anyone to review. The application uses end-to-end encryption and is designed t...

Bitmessage

Bitmessage is a decentralized, open-source, peer-to-peer messaging and file sharing application that enables users to securely send and receive encrypted messages and files without the need for a centralized server. It uses strong encryption to ensure that the messages and files ...

Wickr

Wickr is an encrypted messaging application that provides a secure platform for users to communicate with one another. It provides end-to-end encryption for messages, files, photos, videos, and voice calls, and also offers self-destructing messages that can be set to expire after...

Google Allo

Google Allo is a communication and security app developed by Google. It allows users to communicate with their contacts through text, audio, and video messages, as well as share images and videos. The app also offers a range of security and privacy features, such as end-to-end en...

Discontinued Will be completely closed in March 2019. See message at https://allo.google.com/

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Google Allo does not offer end-to-end encryption, and is certainly not in the same league as Threema when it comes to anonymity, security or privacy.

Guest

Xabber

Xabber is a free, open source cross-platform instant messaging and group chat application that supports multiple protocols such as XMPP (Jabber), Google Talk, Facebook, Vkontakte, LiveJournal and ICQ. The app allows users to send and receive instant messages, create group chats, ...

Bit Chat

Bit Chat is an open source, peer-to-peer file sharing application that allows users to securely and privately share files with other users on the same network. It uses end-to-end encryption to ensure that all data being sent and received is kept private and secure. Bit Chat also ...

Disa

Disa is a free, all-in-one communication platform that enables users to connect with one another through messaging, voice and video calls, and file sharing. It integrates with popular messaging and communication services such as SMS, Facebook Messenger, WhatsApp, and Twitter, all...

Orbit

Orbit is a powerful and intuitive development software and application platform that enables users to quickly build, manage, and deploy applications. It is a cloud-based platform that streamlines development and deployment processes, allowing users to create, test, and launch web...

Telegram X

Telegram X is an alternative, faster and more modern version of the popular Telegram messaging app. It is developed by the same team that created the original Telegram app and is available for both Android and iOS platforms. The main difference between Telegram and Telegram X is ...

Cyanide

Cyanide is a powerful and modern social networking app that helps people stay connected and share their experiences with others. It provides users with a platform to easily create, share and discover content. It also allows users to share their thoughts and stories with others, a...

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