A helper app for learning important topics in iOS development. Questions in the following sections are already available: - Multithreading. - Algorithms. - Memory. - Architectures. - Code. - Compiler. There is an opportunity to pass not only topics, but also to try yourself in different modes: struggle with time (the most answers in a given period) and hardcore mode until the first mistake. Also added statistics and there are leaderboards (you can add your nickname if you want). In the settings, there's a way to make it easier to pass, add question sorting and choose the size of the quiz. Translated with DeepL.com (free version)