I have not tried this app as it appears to be an Android App right now, but I am going to check to see if it is available for the IPad as well. But the concept seems good and is not something you see all the time for quick and easy apps for students to use. Usually, these apps are math skill based. But Tap to Learn Grammar has hundreds of grammar lessons and offers extensions to the learning by clicking on videos that support the concept practiced and learned.
After a little investigation, both Tap to Learn Grammar and Math vs. Zombies are available for the IPad, etc. as well. I downloaded Math vs. Zombies and my son approves. Good game for basic math facts. As for Tap to Learn Grammar, I did not download it as it was 99 cents but got some negative reviews. There were not many reviews yet, but the ones that were there were negative. I plan on checking on this often and seeing if the reviews get better and then possibly downloading it and testing it out. I will post more later if I test it out. For now, feel free to test either and leave your review below.
Tap to Learn Grammar click here!
Math vs. Zombies click here! (parent note....you are shooting scary looking zombies with guns, so use as you feel appropriate)