Naru: Study Revise Maths is a free Android application developed by Zou Technologies Ltd. The app is designed to help students revise all areas of GCSE, iGCSE and A-Level examinations in Mathematics. The app offers free questions for both online and offline use, covering the new linearised curriculum, making it tailored for all syllabuses.

The app allows students to review the answers at the end of topic quizzes to ensure that their revision for the exams is as productive as possible. It also allows students to track their performance on each area and practice the questions across multiple devices. Furthermore, the app provides the flexibility to change the duration of the quiz based on the student's preference.

Overall, Naru: Study Revise Maths is a comprehensive app that offers a wide range of features to help students prepare for their Mathematics exams. The app is easy to use and provides detailed explanations for each question. I would highly recommend this app to anyone looking for a reliable and effective way to revise for their Maths exams.

Please note that the developer would appreciate any feedback, and donations to help maintain the app would be greatly appreciated.