Signal vs Delta Chat

Signal uses an advanced end to end encryption protocol that provides privacy for every message every time.

Signal is free and open source software, enabling anyone to verify its security by auditing the code. It's the only private messenger that uses open source, peer-reviewed cryptographic protocols to keep your messages safe.

Signal Desktop can be used on multiple devices and has most features of the Android version, although it still requires you to register with your phone.

Signal supports: emoji, pictures, videos, audio, contacts, any location and GIF.

Allows you to "send: messages to yourself and sync to desktop so you can use Signal as a kind of encrypted Pushbullet alternative

You can easily view all media shared in the chat without scrolling back to when it was shared.

The sender credentials can be encrypted with the rest of the message, leaving only the recipient address readable by the Signal server. Even if Signal wanted they couldn't see who is talking with who by this mean.

Unlike most messenger apps, Signal works reliably in all countries by securely circumventing internet censorship.

Edward Snowden uses this messenger and recommends it to everyone who is concerned about his privacy.

Everyone knows/uses Email.

There is no central Delta Chat server.

It has messages that disappear automatically.

You can use Jitsi Meet or other providers.

When you are in a group and want to comment privately on a person's sentence, press and hold on the sentence and click on reply privately. The user will be notified with the quoted and commented sentence. If he clicks on the quoted sentence it will take him to the group and to the position where he wrote this sentence.

It will be present in the next version.

Without needing to have a space on a server, just a simple PC and an email for the bot.