How I Use It
This is a great tool to allow students to practice and strengthen mental math skills and overall number sense. There are also a number of games that allow two students to use a device at once. My 5 year old son enjoys playing the "Seige" game in the app that allows you to attack an opponents fortress when you correctly answer an addition or subtraction problem. The more difficult the problem, the stronger your attack. Another two-player game is "Wall" in which players answer questions in order to push a wall to the opponent's side, similar to tug of war.
In a regular elementary classroom, this app would be good for students to use during stations or just as an individual activity. In addition to the games mode, there is also a learn mode, that gradually takes students through different activities exploring math concepts of increasing complexity. Following stages of the learn mode of the app are locked until students make it thought the preceding levels.
Overall, Arloon Mental Math is a solid app. A student might not want to stay in the learn mode for long. Students who don't like to read might get tired of reading the multiple instructions in the exercises, but there are enough options in the games mode to keep most students fairly engaged.
Also, from the developer's website, it appears that the company is based in Spain. That would explain some of the English typos in the app and some of the British spellings of some of the words. This won't cause too much confusion, but students in the US might point think there is something wrong with the app or might not understand a word or two.