Underpass by Jeff Johnson (Universal)
Released: Apr 5, 2017
Version: 2.0
Size: 746 KB
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Price History

Ranking - Utilities (iPhone)

Ranking - Utilities (iPad)


Jeff Johnson
Screenshot #1 (iPhone)
Peer-to-peer (P2P) file transfer and chat, with end-to-end encryption for complete privacy and security.

Underpass is different from every other encrypted communication 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.

Underpass can communicate between your own Apple devices or with another Underpass user. You can communicate securely over the internet or on a LAN, such as in an office, school, coffee shop, or home. Underpass even works on ad hoc peer-to-peer wifi networks. All of your data is encrypted before it's sent over the network, and it can't be decrypted except by the other device using Underpass. Industry-standard AES-128 encryption algorithm.

• File transfers of any file type
• Inline images, including animated gifs
• Unicode text and emoji chat

Underpass for Mac is also available in the Mac App Store. You can communicate with a Mac, iPhone, iPad, iPod touch, or Mac using Underpass.

Underpass is made by indie developer Jeff Johnson. If you need support, please email me at support@underpassapp.com or read the support site at https://underpassapp.com/support/

What's new in version 2.0
Fixed the file context menu on iOS 14. You can once again press and hold on a file in the received messages list to open the context menu.
Our verdict: Good
  • + Underpass is a highly rated app (4.5-star).
  • + It is currently 33% off its regular price.
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