地理3300問　無料地理学習アプリの決定版 is a free geography quiz app developed by Mejiro Publications for Android users. This app is a collection of 3300 geography questions, including 1000 multiple-choice questions and 2300 single-answer questions. The multiple-choice questions are divided into six categories: Asia and Oceania, Europe, North and South America, Africa, Japan, and Geography Trivia. The single-answer questions cover 22 categories, including East Asia, Oceania, Europe, North America, Climate of Japan and the World, Japanese Industry and Agriculture, General Geography, and Geography Trivia.

The questions are geared towards middle and high school students, but anyone looking to test their general knowledge can enjoy them. The app is perfect for commuters looking to pass the time on the train or for groups of friends and family to play together. The app also features a function that only shows incorrectly answered questions, allowing users to efficiently improve their knowledge. At the end of each quiz, users can view their accuracy rate.