Nintaii is not available in Google Play (but the ad-supported version is). It is normally priced at $0.99 in the Amazon Appstore. As we've noted before, there are sometimes differences in pricing and availability between the two marketplaces.
Nintaii is described as follows:
Nintaii is an award-winning and addictive puzzle game that challenges you to outwit a brain-teasing three-D maze with rolling blocks and switches. Roll the block through the labyrinth and drop it into your target.Nintaii has a 4.4-star rating in Google Play, and a 2.8 star rating in the Amazon Appstore.
Nintaii demands persistent concentration. The Japanese term “nintaii” means "patience, perseverance, or endurance." Do you have the endurance to make it through all 100 game levels?
It appears, from the 1-star ratings in the Amazon Appstore, that the app is crashing and crashing and crashing. It seems that most of the ratings in Google Play are older, so it could just be that the app's recent releases have been problematic.
There is also a version in the iOS App Store, which is priced at $0.99 and has a 4-star rating for the current version and 3.5-star rating overall.
It's a return to the so-so offering in the Amazon Appstore after yesterday's Angry Birds release. In general we continue to be disappointed with the program. It began promisingly enough, with Angry Birds Rio, but we've gotten tired of the endless games or niche apps, and especially apps which have no uptake in Google Play, and seem to be FAOTD as a desperation move by the developer. We'd like to see free versions of say, Office-compatible software or useful utilities such as CalenGoo instead of niche apps or endless games.
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.