01
Download and extract
Download the Windows installer on your computer and follow the setup steps.
USB network companion
Give your phone a wired connection.
FastCat routes your Windows computer’s existing internet connection to an Android phone or iPhone over USB—helping you avoid the interference and instability of a wireless hop.
USB link
Ready
Wired path
Computer → USB → phone
- USB firstA direct cable path
- Low interferenceSkip the Wi-Fi hop
- Two mobile platformsAndroid and iPhone
- Hotspot relayShare onward when needed
Three steps
From computer to phone, without another wireless hop.
FastCat keeps setup straightforward. The Windows companion handles the computer side while the mobile app manages the wired connection on your phone.
02
Install the mobile app
Install FastCat from Google Play or the App Store.
03
Connect and open both sides
Use a data-capable USB cable, keep FastCat running on Windows, then open the mobile app and start the wired connection.
Built for consistency
Keep the network path predictable.
FastCat does not replace your internet provider. It changes the final connection between your computer and phone from wireless to wired.
Wired by design
Less exposure to local wireless interference.
Use the network connection your computer already has, then carry it to your phone through a USB cable. This can help reduce instability caused by crowded Wi-Fi or an inconsistent mobile signal.
Live link visibility
The mobile app distinguishes a running network service from a computer that is actually attached, so you can see when the wired link is ready.
Share onward
When supported by your phone, the connected device can act as a gateway and share the computer’s connection through its hotspot.
Get FastCat
Install both sides of the wired link.
Start with the Windows companion, then install the mobile app on your phone. FastCat needs both devices to establish the connection.
Choose the app for each device.
Recommended
Desktop companion
Windows
Required on the computer that provides the internet connection. Download the installer, follow the setup steps, and open FastCat from the Start menu.
Download for Windows View checksum fileThis release is unsigned. Windows SmartScreen may show “Windows protected your PC”. Verify the HTTPS source and SHA-256 before running.
Recommended
Mobile app
Android
Install the public Google Play release on the phone that will use the Windows computer’s connection.
Scan with your Android phone
Open Google Play
Recommended
Mobile app
iPhone & iPad
Install the public App Store release on the iPhone or iPad that will use the Windows computer’s connection.
Submitted to App Store review; version 1.0.1 remains available until approval.
Open the App Store
Install FastCat on the computer and the phone.
The mobile app cannot create the wired link by itself. Keep the Windows companion open while connecting.
Windows release details and integrity check
Version
3.0.31
Package
Windows installer
Size
44,957,575 bytes
Android and Google Play are trademarks of Google LLC. Apple, iPhone and iPad are trademarks of Apple Inc. App Store is a service mark of Apple Inc.
Quick answers
Setup help.
Does FastCat make my internet connection faster?
FastCat does not add internet bandwidth or replace your provider. It moves the computer-to-phone portion of the connection onto USB, which can help reduce instability caused by the final wireless hop.
Why does the phone say it is waiting for the computer?
Confirm that the Windows companion is installed and open, the USB cable supports data, and the phone is unlocked. Reconnect the cable and approve any trust or USB permission prompt.