'Say Hello to Privacy' reads Signal's tagline. Though most of Signal's features are similar to WhatsApp, here's what makes them different. First and foremost, let's understand where each of the apps comes from. While WhatsApp is acquired by one of the biggest tech companies of today i.e. Facebook, Signal is owned by a non-profit organization, Signal Foundation and the app is further developed only through the donations made by their customers.
How much private is private'
Though WhatsApp claims to be end-to-end encrypted, did you know that your back-up messages that transfer to the cloud and the metadata that connects the two ends are not' On the other hand, Signal doesn't at all send your data to the cloud. Instead, your back-up files are saved locally in your phone so that only you have the key to them. The metadata is also encrypted on Signal.
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