Vývojář: Alex Keselman (1)
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EXTRA SAFE: Encrypted Chat
Message with confidence in E2EE chats that self-destruct by default. Set a timer, and all messages, files, and images will disappear on your schedule. Call privately with your anonymous EXTRA SAFE number over a direct P2P connection secured by on-device encryption keys.
EXTRA SAFE is built on core GDPR principles. You get:
– An identity-free setup.
– Direct device-to-device communication (P2P).
– E2EE messages, files, and images with cryptographic keys generated locally on your devices. Just like key pairs work in blockchains like Ethereum.
– No collection of user identities, metadata, or message history: storage is encrypted and temporary by default, following your timer.

KEY FEATURES
1. Encrypted Chat
Your messages are protected with E2EE, so only you and your contact can see them. Everything you send is encrypted on your device, stays encrypted while in transit, and is decrypted only when it reaches your contact’s device. In the app, your identity is verified with a cryptographic signature. You sign requests with your private key, and the server can confirm that the action was performed by you. Every signature includes a timestamp, so old or stolen signatures can’t be reused.

The chat history clears by default – you decide how long the messages stay visible. Set a custom timer for each chat, from one minute to one month. Once your contact views the message, it will disappear automatically within the time you choose.

2. Encrypted File Transfer
Send files of any type, images, and videos up to 25 MB. File transfer is also E2EE, and since EXTRA SAFE chats self-destruct by default, everything you share will disappear at the custom time you set.

3. Secure Calls
Direct device-to-device calls with a phone-like experience, including P2P encrypted in-call chat, that vanishes once the call ends (supports messages and file transfer).

4. P2P Meetings
Start a video call with up to 5 people, with no time limit. Anyone can join your call via a link, even if they don’t have the app installed.

You can use one EXTRA SAFE number on multiple devices.
Víc ↓

Novinky

  • Verze: 2.0.0
  • Aktualizováno:
  • This update brings smoother chatting and more reliable calls:

    - Added encrypted file and image transfer in chats,
    - New timer option for disappearing messages,
    - You can now delete individual messages by long-tapping on them,
    - Improved contacts management (sorting the list, adding the favourite contacts),
    - Improved chat stability and performance,
    - Call quality and reconnection improvements,
    - Other minor fixes and optimizations.

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