As an Android user, I waited and watched jealously as Apple users got The Simpsons: Tapped Out first. Then, sadly, as an Amazon Kindle Fire Android user, I had to wait even longer until it came out for the Kindle Fire (yes, I will be working on changing to a different tablet soon if they don't start getting their release schedule under control =_=). This is one of the first "mobile" games to grab me and not let go. Yes, I messed around with Angry Birds, and Where's My Water, and Plants Vs. Zombies (another one that grabbed me, but not nearly as badly) -- but The Simpsons: Tapped Out (TSTO) has had its hooks into me since June of 2013 (when it was finally released for the Kindle), and I am just as addicted now as I was when I started!
What's even weirder, is this is a "freemium"/free-to-play game, and I LOATHE that business model -- yet I still love this game. I even have to admit that I have purchased and used some of the game's premium currency, donuts.
Premium currency can be used to buy items and characters that have prices listed in donuts instead of in-game dollars, some of the best characters from the show are premium-only characters, such as: Disco Stu, Kang, Sideshow Mel, Otto, Dr. Nick, & Duffman. Most premium characters come with a premium building as well, but some just come by themselves.
Here is a screen shot of some premium items for sale in the game (click for a larger version). That took place during the Christmas event (which I missed). I also missed their: Halloween, Thanksgiving, Valentine's Day, St. Patrick's Day, and Whacking Day events [sad face]. I have read about the events on various websites though, so I am pumped for this year's events. The Halloween event should be just around the corner.