Ion Racer is priced at $0.99 in Google Play, and 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.
Knots 3D is described as follows:
Ready. Set. Go!Ion Racer is rated 2.9 stars in Google Play and at 1.9 stars in the Amazon Appstore.
Exploding into the Amazon Appstore at warp speed, SGN brings you Ion Racer. A sci-fi, action-packed, agility race with heart-stopping thrills, Ion Racer takes speed to a whole new level.
Customize Your Thrills
With endless ways to customize your craft, you'll never run the same race twice. Experience the mounting challenge of mission-based progressive competition. How long can you stay in the race?
Ion Racer is a truly strategic racing game. Choose strike mode to burst through obstacles or play in + Focus mode for precise steering. Control your craft with accelerometer tilt steering or the easy-access light touch controls.
Show Me the Kions
Buy or earn valuable Kions to gain boosts in speed and accuracy. Repair Heal your damaged ship through intensely accurate gameplay or hit auto-repair for instant healing to get back into the race, fast.
Catch multipliers for an out of this world score, and earn perks and upgrades. Are you ready for the ride of your life?
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.
In Google Play, it was noted that despite paying for the app, you still get full-page ads. Ouch.
On the other hand, there is a version of Ion Racer in the iOS App Store, also priced at $0.99 and with in-app purchases. That version has a 4.5 star rating for the current version and 4.5 stars overall.
Based on that, we might consider at least "taking a look." It's free, after all.
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.