Did you mean to view:
- Send a message
- How to know if your communication is private?
- Blog post for Signal's approach to user data
No. You can not send or receive insecure SMS/MMS with Signal on your Android phone. All communication through Signal Android is private.
No. You can not send or receive insecure SMS/MMS with Signal on your iPhone, iPod Touch, or iPad. All communication through Signal iOS is private.
No. Signal Desktop does not send or receive insecure SMS/MMS messages. Only Signal messages will be sent or received. We want to encourage users to move away from insecure legacy protocols.
The desktop app is an independent client that works whether or not your mobile device is present or online. You will still need Signal installed on your phone for full functionality like managing blocked chats, read receipts, linked devices, etc.