Lefo Connect

Lefo

About this app

Lefo Connect is a USB companion tool for ESP32-S3 based hardware devices.

It establishes a USB data channel between your phone and the device, then opens the device's built-in management web console — completely offline, no internet required.

• Plug in the device, tap connect, and the console opens automatically
• Works fully offline: the app never connects to any public server
• Auto-recovery when the device is unplugged and reconnected
• No account, no ads, no tracking, no personal data collection
• The web console itself is served by the connected hardware

VpnService usage: this app uses Android's VpnService API solely to create a
local network interface for communicating with the connected USB hardware
device. It routes only the 192.168.8.0/24 subnet over this interface. It is
NOT a VPN service: it does not connect to any remote server or VPN endpoint,
does not tunnel any traffic to the internet, and does not intercept or
forward the user's other network traffic. No data leaves the device through
this interface — all communication stays inside the USB cable between the
phone and the hardware.