Reasoning Book is a free Android app developed by androslaboratory that provides an extensive collection of reasoning questions with answers. This app is designed to help individuals prepare for competitive exams such as Railway SBI Clerk 2018, SO, and more. With over 5000 reasoning questions and more than 30 topics, this app covers a wide range of topics, including Logical Reasoning, Verbal Reasoning, Analytical Reasoning, and many more.

One of the most notable features of Reasoning Book is its user-friendly interface, making it easy for users to navigate and find the information they need. The app also provides detailed explanations for each answer, allowing users to understand the reasoning behind each solution. Additionally, Reasoning Prelims 3 Sets have been added to the app, providing users with even more exam preparation material.

Overall, Reasoning Book is an excellent resource for those looking to prepare for competitive exams. It is easy to use, provides a vast selection of questions and answers, and is completely free to download and use.