Yes, the Walabot DIY is a device that connects to your phone with a cable and interfaces with your phone via a free app from the Google Play Store. The Walabot DIY device sends out signals to detect objects inside walls and the app and phone process the information in order to show a visual representation of the objects inside the wall.
The app is a free download on the Google Play Store for the Walabot DIY (app name is Walabot DIY). The Walabot DIY is compatible with phones that run Android 6.0 or above with USB On-the-Go (OTG) support.
Please note the phone that is being used with the Walabot does not require a cell or data connection, you will only need to connect to WiFi to download or update the app. For regular usage, the phone can be "offline".
If you would like to know about a specific phone, send us the phone model (it can be found in the phone's settings under "About Phone" ) and we'd be happy to check its compatibility for you!