Dr.Trainer is an Android app developed by SofaBaton.com, under the Utilities & Tools category. It is a free app used to configure and customize the settings of the Smart Bark Collar. The app uses Bluetooth signal to communicate with the collar, giving access to various settings such as trigger condition, correction mode, and stimulation intensity.

The app not only provides automatic barking control but also supports virtual remote control function which can be used for short distance independent training. This feature allows the user to control the collar using the app, sending commands such as vibration, beep, and static stimulation. The app is user-friendly and easy to navigate, making it convenient for pet owners to customize the collar's settings according to their needs.