Underpass
Promo
End-to-end encrypted chat and file transfer for complete privacy and security.
Underpass is different from every other encrypted chat app Because it does not use a third-party service. It's just two devices and a password. Peer to peer. There's no signup. No account. No phone number, email, contacts, or any personal information requested, not even your real name.
You can chat securely over the internet or on a LAN: such as in an office, school, coffee shop, or home. All of your data is encrypted before it's sent over the network, and it can not be decrypted except by the other device using Underpass. Industry-standard AES-128 encryption algorithm.
Chat features:
* File transfers of any filetype
* Inline images
* Unicode text and emoji
Underpass for Mac is also available, sold separately in the Mac App Store. You can chat with an iPhone, iPad, iPod touch, or Mac using Underpass.