Paprika Prep4 TOEFL Grammar is an Android app designed to help you increase your TOEFL® score, especially in the Structure section. Lack of practice is the main reason why most people fail to get a higher score in this section. This app provides you with a good tool to learn and practice the lessons related to common grammar problems that appear in the TOEFL® test. With more than 140 lessons and over 400 frequently used vocabulary words, this app is a comprehensive guide to improving your grammar skills.

The app offers many features to make your learning experience efficient and convenient. You can practice anytime and anywhere without the need for heavy books. The app also provides immediate feedback and explanations for correct and incorrect answers. Additionally, you can track your progress through statistics and see how much you have improved. The app is free to use and is a great resource for anyone looking to improve their TOEFL® score.

Note: This app is not endorsed or approved by ETS, the organization that administers the TOEFL® test.