Lumosity.com are bunch of thieves. They got my friend's money(took the credit card info and all other information and after transaction was done) when he started to use the software, she got an error msg saying that her device is not supported. She tried to get customer support, no body answers the customer support line.
Also my wife registered to test the software as they advertise it for a month in a free basis, she was only able to use it for one day. But after that they are doing heavy marketing to sell her the subscription.
In summary if you are interested in brain teaser software look somewhere else. Lumosity are bunch of thieves.