シワケロイド 簿記3級 is an Android application developed by virgo, free of charge. This app is designed to help users practice bookkeeping and is based on the first question of the 日商簿記３級 exam. The user is required to select an account from a list of options and enter the amount using a calculator. The app includes 50 practice questions that are randomly generated and provide a similar experience to the actual exam.

One unique feature of this app is that users can customize the correct and incorrect answer images with various Android characters, making learning bookkeeping more fun. By accumulating correct answers, users can unlock new characters. The app also offers several settings, such as changing the color of the calculator, turning sounds on and off, and selecting up to four images for both correct and incorrect answers.

Please note that this app is not a guarantee of passing the exam, and the explanations provided are concise and straightforward. The app's paid version,シワケロイド 簿記3級 Master, is available for 100 yen on the Google Play Store, offering 120 questions, no advertisements, and additional characters.