The app teaches four blackjack card counting systems: Hi-Lo, Hi-Opt1, Hi-Opt2, and Wong Halves. Users can practice these strategies to become familiar with them for use at the blackjack table.
The app provides an offline reference for Boeing 767 flight crew, detailing hundreds of EICAS messages. It includes explanations, levels, MMEL references, and aural alerts, with options to test knowledge through various challenge modes.
The app presents lessons on English verb tenses, covering diagnostic tests, simple and continuous forms, and future and suitable tenses. Users can practice with 1330 questions in 129 exercises using gap filling or multiple choice formats.