Traffic Light is an educational application developed by TK Soft for Android devices, aimed at teaching children how traffic lights work. The app has two modes - Auto and Manual. In Auto mode, the countdown timer starts with a green light, then turns yellow and finally red. In Manual mode, the timer stops and you can change the lights with a tap on the screen.

One of the best things about Traffic Light is its configurable display time for each light. This feature allows children to learn and understand the time interval between each signal and how it impacts the traffic flow. Moreover, the app supports multiple devices and screen sizes, making it accessible to a wide range of users.