DNAI.WIS is a travel and navigation app developed by Bùi Văn Dũng for Android devices. The app serves the purpose of providing users with information about licenses issued by the government of Vietnam. It allows the user to look up license information by entering the name of the license holder or the license number. Additionally, the app also supports scanning QR codes to retrieve license information.

The app provides comprehensive information about the license, including its status, time of issuance, and requirements. Users can also view the location of the business on the map, making it easier to locate the business. The app is free to use and can be downloaded from the Google Play Store.