encryption strength

Threema is a Swiss messaging service founded in 2012, which now has over 12 million users and approximately 8,000 organizations globally. The platform's ownership has recently changed to Comitis Capital GmbH. Threema uses a unique approach to user identity by assigning a random eight-digit ID instead of requiring personal information like phone numbers or email addresses. Messages are stored locally and deleted from servers after delivery, enhancing privacy. It operates on a paid model with a one-time fee, supports anonymous payments, and employs high-grade cryptography for security. Users can send text and voice messages, share files up to 100 MB, and conduct end-to-end encrypted voice and video calls. Threema targets individuals and organizations prioritizing privacy and data protection, while it may not appeal to those seeking free apps or cloud-based chat history. Key features include end-to-end encryption, QR-based contact verification, and local group management capabilities.