Красный-Синий: Заработок денег is a free Android app developed by Birdcoin Games, available in the Lifestyle category. It offers a unique way to improve brain function and earn money simultaneously. The app claims to use the Stroop effect to effectively enhance brain function. By playing the game, users can earn coins, which can be used to purchase oil wells. These oil wells generate daily income, and users can participate in auctions to win more oil wells. The earned money can be withdrawn conveniently starting from 19 rubles.

The app offers several advantages of effective brain training, such as improved memory, concentration, intelligence, and logical thinking. It provides endless exercises, daily tournaments, and competitions. Additionally, there is a personal online operator to assist users. The app rewards coins for every correct answer and is generous in auctions. The brain training exercises were developed in collaboration with renowned neuropsychologists and are based on cutting-edge scientific research. A study conducted at the Free University proved the effectiveness of the Stroop effect.