Alternatives

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...

No end-to-end encrypted by default, contacts and data stored on servers.

Guest

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...

WhatsApp is not Free Software and is not focused on privacy. It is difficult to use in use cases that require high software control and verifiable data protection.

arndtadler

Also end-to-end encrypted by default.

Guest

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...

Wire stores more data than signal (https://www.reddit.com/r/privacy/comments/7kz94t/wire_messenger_or_signal_messenger_privacy/)

arndtadler

Jitsi

Jitsi is an open-source, multi-platform, video conferencing, and collaboration software that enables users to communicate securely and easily with anyone, anywhere. It offers several features, such as one-click video and audio conferencing, screen sharing, and file sharing, that ...

Matrix.org

Matrix.org is an open source, distributed communication platform for secure, decentralized messaging and voice calls. It provides a secure and private messaging service for businesses, developers, and individual users alike. The platform is designed to provide end-to-end encrypti...

Jami

Jami is a free and open source file sharing application and software that allows users to securely exchange multimedia files with other users. It is available for both desktop and mobile platforms, and is compatible with Linux, Mac OS, Windows, Android, and iOS. Using Jami, user...

Silence.im

Silence.im is an encrypted messaging app that provides users with secure communication. It allows users to communicate with one another without worrying about their privacy being compromised. The app offers end-to-end encryption, meaning that messages and conversations are encryp...

Linphone

Linphone is an open source and free VoIP service that allows users to make and receive audio and video calls, as well as send and receive instant messages over the Internet. It is designed to be easy to use, fast, secure, and reliable. The app is available for Windows, Mac, Linux...

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...

It has end-to-end encryption by default. It is decentralized/federated so it does not block or shut down.

Guest

RetroShare

RetroShare is a free and open-source, decentralized, secure communication and file-sharing application that enables users to communicate and share files with friends, family, and other users in a secure, encrypted manner. It utilizes multiple layers of encryption to protect user ...

Keybase

Keybase is an open source development software and application that provides users with secure access to encrypted messaging and file sharing. It allows users to securely chat and share files with friends, family, and colleagues. Keybase also provides users with a secure identity...

No telephone number needed

Guest

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...

Threema

Threema is a secure and private messaging app that allows users to communicate in private and secure conversations. It is designed to protect user data and prevent surveillance or hacking attempts. It is based on the end-to-end encryption protocol, which means that messages are e...

User keys are not generated by an algorithm, but by the user. There is no need to register a phone number or email address. You will be given a pin and that will be enough to log in.

aljasser

Threema's web component is open source.

Guest

It is secure, the business plan is clear and respects your privacy.

konsumschaf

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...

Trillian

Trillian is an instant messaging and collaboration platform that allows users to communicate with their contacts across multiple networks. It provides a unified messaging experience, letting users message and collaborate with contacts from different networks in the same applicati...

LINE

LINE is a popular messaging and social media app that allows users to interact with friends, family, and colleagues. It provides a range of features that can be used to make communication more efficient and enjoyable. LINE enables users to send messages, photos, videos, and voic...

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 ...

Signal Comments

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Signal Reviews

By Ariana · Jun 2017

Me encanta Signal por el cifrado automático de extremo a extremo. A pesar de que Whatsapp ahora también tiene eso, yo también prefiero Signal porque es más transparente sobre el manejo de claves. Me encantaría que agregaran la oportunidad de usarlo sin un número de teléfono. Esto es lo único que no me gusta porque no puede permanecer en el anonimato cuando usa Signal.

By terra_shark · Jan 2019

Independientemente de quién lo respalde, Moxie es hostil a cualquiera que amenace su control sobre el proyecto. También tiene una opinión muy alta de la tienda Google Play a pesar de que viene con ToS y Google Play Services de Google. Él hace todo lo que puede para cerrar modos alternativos de distribución. Leería esto antes de instalar y contribuir a la base de usuarios de Signal, especialmente si lo que te interesa es el código abierto y / o F-Droid.

Signal

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