Here’s a quick summary of the pros and cons we encountered while reviewing this service. By the time we are done, you should have a good idea of whether this is a service you want to invest some time (and a tiny bit of money) in. In this review, we’ll cover the pros and cons of the service, along with its features and capabilities. Threema is GDPR compliant and offers a range of versions optimized for various use cases. Even if someone were to somehow get access to all the data on the servers, there would be little of use to them. Likewise, your public keys reside on devices instead of the central servers. They do this by storing contacts and messages on each user’s device, instead of on the server.

And all of this is done end-to-end encrypted for excellent security.Īdditionally, Threema goes beyond many other services in minimizing your footprint on the servers that route traffic. What can you do with this anonymous service? Text and voice messages? Of course. This allows you to use the service with a very high level of anonymity, making it perhaps the most private messenger of all. Unlike so many other secure apps, this one doesn’t require you to enter an email address or phone number to create an account.

Threema is an end-to-end (E2E) encrypted mobile messaging app.

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