iThong is a traffic violation lookup app designed to help users understand and comply with traffic laws in Vietnam. The app is developed by THƯ VIỆN PHÁP LUẬT and is available for free on Android devices.

The app's main feature is the ability to search for traffic violations using voice commands or keywords. It includes all the latest traffic violation regulations for motorcycles, cars, and other vehicles according to DecreeND-CP. The search function is divided into 11 categories, making it easy for users to find the information they need.

In addition, iThong also has a feature that allows users to look up traffic signs and a section dedicated to helping users prepare for their driver's license exam. The app also includes a blood alcohol calculator to help users determine when it is safe to drive after consuming alcohol. Finally, the app provides the latest traffic news and legal policies related to the traffic sector.

Overall, iThong is a comprehensive and useful app for anyone looking to stay informed about traffic laws and regulations in Vietnam.