Tunnel App easily build a secure private network environment with unique P2P technology between smartphones, PCs, etc., and enable data communication between client and server apps on different networks.

Feature
- Not only between smartphones and PCs, but also between smartphones, you can build a easy private access environment(VPN).
- Tunnel communication data between devices is encrypted End-to-End, so the contents cannot be seen by us or a third party. Also, communication data is not saved on the Cloud.
- Registration of user information to use the service is not required, and personal information is not acquired with this app.
- There is no charge for using this service.

Use case
- Access your home Windows PC from your Android smartphone outside the house with Remote Desktop.
- Access your office's Linux PC from your Android smartphone outside the house with SSH.
- Access your home IoT devices from your Android smartphone outside the house with HTTP. ex: ONVIF compatible camera

Mechanism of the service
- You use two devices, a "client side device" that connects to the same network as the client app and a "server side device" that connects to the same network as the server app.
- You register the associations with the server side device to the client side device by using QR code. In addition, you register the communication settings for receiving the access from the client app to the client side device and the communication settings for accessing the server app from the server side device.
- We relay the communication data between the client app and the client side device and the communication data between the server app and the server side device. As a result, You can access the server app from the client app.

Terms of use
- To use the service, you need to agree to the terms of service.
- Up to 5 concurrent connections from the client app to the client side device are possible.