

In fact, WhatsApp’s in-house encryption system is built using Signal’s code. This means that if there is any privacy issue in Signal, it can be checked by security experts. All of its code is available online and is up for public scrutiny. What sets Signal apart, though, is the fact that the app is open source. RELATED: What Is Signal, and Why Is Everyone Using It? It’s a relatively small company run by a not-for-profit organization and survives on donations.

The messaging service promises that all your data is encrypted and can’t be viewed by Signal or third parties. Signal is an end-to-end encrypted app, just like WhatsApp. Its popularity is largely because of the company’s stance on user privacy. When it comes to WhatsApp alternatives, Signal is at the forefront.
