Такси ОПТИМАЛ is a free Android app developed by Группа компаний КЛАСС. It falls under the category of Travel & Navigation. The app claims to be the cheapest taxi service in town by analyzing the entire taxi market and offering the best prices to its users. With a cashback of 5% on booking through the app, it promises to provide the best deals. Additionally, the app allows you to track the real-time location of your ride.

The app seems to have a simple and user-friendly interface, making it easy to use for anyone. The cashback offer and the real-time tracking feature are attractive to users who are looking for the most affordable taxi service. However, the lack of information on the subcategory and the absence of any reference to the developer may be a concern for some users.