Gravity Guy is priced at $1.53 in Google Play; it is normally priced at $0.99 in the Amazon Appstore. As we've noted before, there are sometimes differences in pricing between the two marketplaces.
Gravity Guy is described as follows:
See You on the Flip SideGravity Guy is rated at 4.5 stars in Google Play. It is rated at 3.7 stars in the Amazon Appstore.
In a world where gravity laws were broken, one brave individual is held captive for defying the rules. Not happy, he decides to escape, being the first one to run for his life. Flipping gravity at will, he became known as the Gravity Guy.
Being chased by Gravity troops, Gravity Guy can't stop, he has to keep running and it's your job to guide him through an impossible world of mazes, flipping gravity when needed. This fast-paced adventure features 30 challenging levels, three different worlds, and guarantees you many long hours of fun. Compete in all three game modes (Story, Practice, and Endless) and against up to four players.
PLEASE NOTE: This app lets you purchase digital content using actual money. You can configure parental controls for in-app purchases, which will require your Amazon account password or a 4-digit PIN, by tapping the Menu icon and then Settings.
Many of the lower ratings in the Amazon Appstore address the in-app purchases. Still, we'd give this a "buy" (while it's free) nod.
There is also an iOS version of Gravity Guy in the App Store. It is priced at $0.99 and has the same in-app purchase requirements.
what it means to developers.
Amazon.com opened up the Appstore despite a lawsuit by Apple, which has previously trademarked the term "App Store." Microsoft has filed an appeal against that trademark, saying the term is too generic. Amazon.com has responded to the lawsuit in the same manner.