Lumosity

Impossible to contact a person. Don't let them get any of your information. Rip off

I love this site! The games are straight out of lots of IQ, memory, neuropsych, and visual-motor integration tests that I administer. They are fun, addictive and definitely keep you on your toes. The only blatant drawback I see is that if the games are standardized (mean =10, SD=15 etc.) when comparing yourself to others practice effect would be a significant confounding variable. However, I'm sure the comparative measure is purely for entertainment purposes. So tell the budding lumogame junkies not to put MENSA on the speed dial just yet.
The graphics are retro, the response on my IPAD is awesome and I haven't had any technical problems with the site at all. Also, you can play three games a day, each as often as you like without joining and if your up late at night, sometimes you have free open access to all the games. Oops, that may not last too long.
Anyway, I really enjoy LUMOSITY, check it out, it's a bit challenging in the beginning but once you get the hang of it...

FOR FELLOW PSYCHOMETRICIANS: It's BRIEF, STROOPISH, NEPSYISTIC, WISCTASTIC, AND WRAMLISH, and suitable for TONI, most Pearsons as well as KAUFMANIACS!