A free program for Android, by quizworld.
The best and easiest way to practice and test your English is the English Errors Tests app. With this app, you can find and correct different kinds of mistakes and spelling errors. It is useful for both beginner and intermediate levels.
Your score will be saved, so you can check your progress and see how much you have improved.
The app is very simple and intuitive to use. Just select the text you want to check, click the correct button and you are done.
If you find any mistakes, the app will also show you the exact location of the mistake, so you can easily correct it.
