Published by Jeff Johnson on 2021-10-16
What is Underpass? Underpass is a peer-to-peer (P2P) file transfer and chat app that provides end-to-end encryption for complete privacy and security. It is different from other encrypted communication apps as it does not use a third-party service and requires no personal information or account creation. Underpass can be used to communicate securely over the internet or on a LAN, and it works on ad hoc peer-to-peer wifi networks.
1. 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.
2. Underpass is different from every other encrypted communication app because it does not use a third-party service.
3. You can communicate with a Mac, iPhone, iPad, iPod touch, or Mac using Underpass.
4. Underpass can communicate between your own Apple devices or with another Underpass user.
5. Underpass even works on ad hoc peer-to-peer wifi networks.
6. Peer-to-peer (P2P) file transfer and chat, with end-to-end encryption for complete privacy and security.
7. Underpass is made by indie developer Jeff Johnson.
8. Underpass for Mac is also available in the Mac App Store.
9. No phone number, email, contacts, or any personal information requested, not even your real name.
10. You can communicate securely over the internet or on a LAN, such as in an office, school, coffee shop, or home.
11. Industry-standard AES-128 encryption algorithm.
12. Liked Underpass? here are 5 Utilities apps like My Verizon; myAT&T; T-Mobile; My Spectrum; Calculator & Math Solver;
Or follow the guide below to use on PC:
Select Windows version:
Install Underpass app on your Windows in 4 steps below:
Download a Compatible APK for PC
| Download | Developer | Rating | Current version |
|---|---|---|---|
| Get APK for PC → | Jeff Johnson | 4.73 | 2.0 |
For Windows 11, check if there's a native Underpass Windows app here » ». If none, follow the steps below:
| Minimum requirements | Recommended |
|---|---|
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Get Underpass on Apple macOS
| Download | Developer | Reviews | Rating |
|---|---|---|---|
| Get $1.99 on Mac | Jeff Johnson | 26 | 4.73 |
Download on Android: Download Android
- File transfers of any file type
- Inline images, including animated gifs
- Unicode text and emoji chat
- Industry-standard AES-128 encryption algorithm
- Available for Mac, iPhone, iPad, iPod touch, and Mac
- Made by indie developer Jeff Johnson
- Support available through email or support site.
PC Apps 
