1

Download the Gruff app

Download the Gruff Technology app from Google Play or Apple App Store. The app is free and requires no monthly fee.

2

Connect socket to Wi-Fi

Plug the smart socket into a wall outlet and follow the app instructions to connect to your Wi-Fi network. The socket operates on a 2.4 GHz Wi-Fi network.

Make sure your Wi-Fi router supports 2.4 GHz frequency. Most routers support this by default.

3

Set price limits

Set the maximum electricity price (cents/kWh) at which the device operates in the app. You can also set critical operating hours when the device must run.

4

Done! Start saving

The socket will automatically monitor Nord Pool prices and turn on the device only during the cheapest hours. You can see the savings immediately in the app.

Gruff app

The Gruff app is available for both Android and iOS. With the app you can:

  • check_circle Monitor real-time Nord Pool prices
  • check_circle Set price limits and operating hours
  • check_circle View energy consumption history
  • check_circle Switch devices on/off remotely
  • check_circle Get notifications about price changes
Gruff app

Frequently asked questions

Does the socket work with a 5 GHz Wi-Fi network? expand_more
No, the socket only works on a 2.4 GHz Wi-Fi network. Most routers support both frequencies.
Is the app free? expand_more
Yes, the Gruff app is completely free and requires no monthly fee.
How powerful of a device can be connected? expand_more
The smart socket supports devices up to 3.5 kW. For higher power devices, we recommend the DIN rail relay.
Is my data secure? expand_more
Yes, all calculations happen locally on your device. We do not collect or share your personal data.