Question 1

What should you check in messaging apps without a phone number?

Accepted Answer

Check what sign-up asks for, what the server can read and who runs the server. Those answers decide how private the app is. In Socketchat, sign-up asks for a display name and a passphrase. The server cannot read messages, files, display names or room names. And the server runs on a computer that you or a friend control.

Question 2

Is there a private chat app without a phone number?

Accepted Answer

Socketchat is a private chat app that needs no phone number, email or account. Messages are end-to-end encrypted, and the server runs on a computer you or a friend control. It is also a free messaging app without a phone number: open source under the MIT or Apache 2.0 license, with nothing to pay. If you are looking for the best private messaging app without a phone number, compare what each one's server can see. Socketchat's server cannot read your messages, but it can see room rosters, when a message is sent, and IP addresses of users.

Question 3

Is there a group chat app without a phone number?

Accepted Answer

Yes. In Socketchat every room is a group chat, and members join with a one-use invite link rather than a phone number. Admins can remove people, and a room closes for everyone once its admins agree. Direct messages between two people work the same way, with their own invite link.

Question 4

Is there an encrypted messaging app without a phone number?

Accepted Answer

Socketchat encrypts every room end to end with MLS (Messaging Layer Security), the group encryption standard published as RFC 9420, and needs no phone number. Message contents also get post-quantum protection, on by default. Post-quantum protection guards messages recorded today against a future quantum computer. Read how it works.

Question 5

What do I need to run Socketchat?

Accepted Answer

A computer with macOS, Linux or Windows and a terminal. One command installs it, and the download is under 7 MB. The same program runs the server, on a cloud server, a spare laptop or a Raspberry Pi 4 or Zero 2 W.

Question 6

Can you use Signal without a phone number?

Accepted Answer

Usually not. Signal's February 2024 post on usernames says "you will still need a phone number to sign up for Signal." In September 2026, Privacy Guides reported that Signal opened sign-up without a phone number in its Android beta, for a one-time fee of $2.99.

Question 7

Why does Signal require a phone number?

Accepted Answer

Signal's 2017 post on contact discovery says Signal began with "the social graph that already lives on everyone's phones: the address book." Phone numbers let your contacts who use Signal appear without building a new contact list.

Question 8

Is Socketchat free?

Accepted Answer

Yes. It is open source under the MIT or Apache 2.0 license and costs nothing to download or run. A rented cloud server for hosting has its own price.

Encrypted group chat without a phone number.