I didn’t have high hopes for this app, it looked too simplistic. However, it’s been my most used school app ever since I downloaded it last week, used almost daily. The explanation for ‘settings’ was a little confusing, it sounded like he was repeating himself, but after playing with it, I figured it out. For studying the one through seven multiplication tables, I keep the ‘range’ slid to ‘12’ and select 1-7 of the ‘focus numbers’, this ensures my child is being drilled only on tables 1-7. Some complained about the font not being big enough and the answer revealing too slowly but I didn’t find either of these to be an issue for myself or my children. It’s a simple and straightforward app that does exactly what it states it will, my only regret is not finding it sooner. We’ve been using BRAINSCAPE for multiplication memorization and while it is effective, you can’t shuffle or mix the tables at random without a subscription, both of which are crucial to retention. This does both for free, no need to sync or use a website to manage, excellent app.