Apental Calc is a Facebook utility being developed and updated by Magazine Pro. With this utility, you'll be able to increase the likes on any of your Facebook posts and images.
Once you've installed Apental Calc, you'll have to link your Facebook account to the application. From there, you'll be able to select the posts you're looking to boost the likes on so that Apental Calc can do its work.
As you select posts for Apental Calc, you may notice that the amount of increased likes you're getting seems to be a random number every time. This is done on purpose through the algorithm that Apental Calc uses. With this algorithm, other users like your friends won't notice anything off that would have them question you.
Overall, Apental Calc is a great utility for anyone that needs Facebook likes for any reason. Some users will face some difficulties though in that the application doesn't give you organic likes from real people and that as time goes on, some of the likes you get might end up being removed from Facebook.