There are lots of Android device owners out there, and that creates a high demand for Android apps. Unfortunately, there are lots of apps to choose from in the Google Play Store, making it difficult to spot the gems.
It's easy to forget that the Play Store is not the only place to get Android apps. Amazon has an app store, and while it doesn't have a selection as large as Google's store, Amazon often runs specials that offer apps at a good discount, and sometimes even for free.
Such a special is going on right now, and there are some pretty good Android apps up for grabs. The biggest one on special is free right now: Documents to Go, which normally costs $14.95.
Below, you can see all of the apps that are temporarily free at Amazon, so if you see something of interest, you'd better head to Amazon and pick it up. There's no indication of how long they will be free.
Note the image below is from a search, and it dynamically changes, so when you visit the page, it may look different. Save the search to keep an eye on free Android apps at Amazon.