Data Collected by Apps: WhatsApp vs Telegram vs Signal vs Messenger

Signal boasts active account of 10-20 million monthly active users. Looking at the raw numbers, it’s clear that WhatsApp is wildly popular and almost ubiquitous while Telegram is catching up and Signal seems to have just joined the million downloads race. With that said, numbers don’t tell you everything and that’s why we bring you a detailed comparison between WhatsApp vs Telegram vs Signal vs Facebook’s Messenger.

In this article, we will let you know the significant amount of personal data each messaging apps collects from you since some of you are considering switching to another messaging app.


Facebook and WhatsApp collect a significant amount of personal data from users, and this is especially apparent when compared with competing applications.

Telegram, which purports to offer greater privacy as well as end-to-end encryption, collects far less personal data.

Another privacy-focused messaging app that has been touted as a competitor to WhatsApp is Signal – which collects no personal information and runs on an open-source encryption framework, with your messages and data stored locally.

To demonstrate the differences in personal data collection between these different services, we have listed how these services broadly handle user data according to Apple’s Privacy labels in the infographic below.

Data Collected by Apps: WhatsApp vs Telegram vs Signal vs Messenger

WhatsApp vs Telegram vs Signal vs Messenger Personal Data Collected by Apps

Data linked to you Facebook WhatsApp Telegram Signal
Contact Info Yes Yes Yes
Contacts Yes Yes Yes
Identifiers Yes Yes Yes
Purchases Yes Yes
Financial Info Yes Yes
Location Yes Yes
User Content Yes Yes
Usage Data Yes Yes
Diagnostics Yes Yes
Health and Fitness Yes
Search History Yes
Browsing History Yes
Sensitive Info Yes
Other Data Yes
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