What is Underpass?

Underpass Icon

Underpass is an app that allows two-way chat and file transfer over a network: either a Local Area Network (LAN) or the internet. Underpass for Mac can communicate with another Mac or with an iOS device — iPhone, iPad, or iPod touch. For privacy and security, Underpass fully encrypts all chats and file transfers end to end. Your data cannot be decrypted in transit over the network. Only the device you're communicating with can decrypt the data.

For help using Underpass, select one of the main topics below.

Credits: The Underpass app icon was designed by Christa Mrgan.

Underpass is Copyright © Jeffrey Johnson. All rights reserved.