According to App Annie, Signal had about 20 million monthly active users globally at the end of December 2020. According to Sensor Tower, the app was downloaded more than 7.5 million times between January 6 and January 10.
How secure is Signal?
Signal says the only two pieces of information the company collects are how long users have had Signal installed and the last date it was installed. They do not obtain user messages, groups, contacts, or profile information. Signal also open sources all of its software, meaning the public can view how the tech was made inspect the code themselves.
How secure is WhatsApp?
WhatsApp owner Facebook says they do not access chats due to the end-to-end encryption, but the company can take user data. Facebook has access to WhatsApp user phone numbers, IP addresses, mobile network, length of time using the messenger, payment data, cookies, and location data.