I ran through my GAccount to see the games I bought earlier this year. Since my Galaxy Tab sucks less, I use it more. Here's what I got; GTA III Frontline Commando Modern Combat 3 Six Guns Temple Run Radiant Defense Real Racing 2 Traffic Panic Ninja Fishing Mine craft Muffin Knight Mine craft Line Runner Line Birds Frisbee Carnivores HD Big Top THD Bank Job Cordy Sky And now here's just random nice looking games I'll throw at ya Amazing Alex Shadowgun Final Fantasy III Riptide GP The amazing Spider Man Great Little was game Apparatus Ski Safari Sonic CD Sonic 4 Episode II NFL Flick Quarterback I got hundreds more for ya, plus AndroidPolice always lists the new things found. A lot sometimes suck, but I always find 2 or 3 good apps, at least. Most I got at once was 42 games and apps.
Not that I've really tried any others for Android, but QR Droid is a better QR code scanner than any I've tried on iOS; and it's the most popular on Android. Always keep in mind that almost anything you use on iOS has an equivalent on Android, if not the same exact app.
Dead Trigger Shadowgun Angry Birds Amazing Alex World of Goo Fruit Ninja Onlive MineCraft: Pocket Ed Some the games I have
Android is really very much popular in the world and also it is an operating system. There are so many different kind of application in android market such as gtalk, maps, gallery, different types of photos editor, games etc and many more.