Ôn thi lý thuyết sát hạch ôtô is an educational mobile application developed by Ton Nguyen. It is designed to help individuals study and prepare for the theoretical driving test in Vietnam. The app features a comprehensive set of 450 multiple-choice questions, which have been in use since July 1, 2013.

One notable feature of the app is that it includes questions that require selecting multiple correct answers simultaneously. This is different from the previous set of 405 questions, so users should be aware of this change.

Ôn thi lý thuyết sát hạch ôtô is a free app that provides valuable resources for those aspiring to obtain a driving license in Vietnam. It covers all license categories including B1, B2, C, D, E, and F. The app is user-friendly and accessible, making it a convenient tool for studying on the go.