If there is an iOS game that you can presently play for fun while also improving several skills, it will have to be Harissapp’s Electricity! The latter has been around for a while and since it’s a free-to-play game, thousands now have it installed on their smartphones or tablets. However, what also gives this app its appeal is the fact that it can genuinely better the abilities that are engaged while playing! Hence, many have noticed that their reflexes and concentration level got better following a few weeks of practice. This is indeed pretty amazing considering that this app is free and very lightly monetised. Simply give it a go to get an idea of what it’s really about!