No sign-up, completely free.
Simply scan the QR code to connect your smartphone and PC directly, anywhere!

Do everything with just one app, your own ultimate private network

Tunnel App easily create a secure and private tunnel environment between devices such as smartphones and PCs, enabling data communication even between apps on different networks.

Use case

You don't need to open any ports! Securely connect to your home PC or company server from anywhere! Plus, up to 5 simultaneous connections are possible!

Technology for Tunnel App

Tunnel communication data between devices is encrypted End-to-End using our proprietary P2P technology, so the contents cannot be seen by us or a third party. We also do not save communication data on the Cloud.

Furthermore, it achieves low-latency data transmission, it can also be used for applications such as remote monitoring.

• Architecture
  The P2P infrastructure architecture consists of the Proxy Server Layer that handles data communication with apps on the device side, and the Relay Server Layer that connects data communication between Proxy Server Layers. Learn more
• Security
  When the Proxy Server connects to the Relay Server, it always uses ECDHE (256 bits) of Public-key cryptography. The encryption key used for encryption is generated in HKDF (256 bits) with the secret key shared by ECDHE. Learn more
• Performance
  When a proxy server or relay server is involved during data communication, it naturally adds overhead, resulting in latency in data transmission. Tunnel App enables low-latency data transmission, it can also be used for near real-time applications such as remote control. Learn more

When using the service

Registration of user information to use the service is not required, and personal information is not acquired with this app. *Privacy policy
Additionally, there is no charge for using this service. *To use the service, you need to agree to the terms of service.