Great idea, but aggravating app – Find the Letters HD Review

I bought the full version of this app over a year ago for my son to use. As a teacher it also appealed to me based on the information about it being recommended by teachers. When I tried it out I found that I couldn't ever unlock any new levels! Isn't that the point of purchasing the full version? The user is asked to post to Facebook or tweet in order to unlock another level. Purely out of frustration and exasperation I did so...but no new levels ever unlocked. I emailed the company and never received a response. Just recently I tried updating the app to see if the problem had finally been fixed, but alas, it has not! What an irritating waste of my time, money, and energy! Somebody at EdNinja needs to figure this out.
Review by Winbcg on Find the Letters HD.