Today's Free App of the Day is Polyhedron Runner
Originally $0.99

This a unique arcade style game where you control a spinning polyhedron, trying to get it to "swallow" a fixed point. I actually liked it, but it's very challenging and has no instructions--read the reviews if you want to know how to play. I agree with the reviews that it could benefit from a speed control. And so, I have a KBAAD today...first one in a while.

5 of 16 reviews are four stars and above.

So we have a bonus pick: Ultimate Jewel.

This is a match-3 game, mostly pretty standard with a few unique wrinkles. It's attractive and plays well. Because it's permafree, it has a small ad at the bottom. 1065 of 1150 reviews are four stars and above.

These apps are compatible with the original Fire and with my Fire HDXs. To tell if an app works for your Fire HD or other Android device registered to your Amazon account, click on the above link and look on the right side of the web page. Amazon will tell you if it will work with your registered device.

Have fun!

Also check out the other digital deals from Amazon, including great deals on MP3s and videos: