The Quality Index boasts over 80,000 reviews from websites like 148Apps, Pocket Gamer, and No DPad, and uses a unique metric to create a single definitive score for each iPhone title.
They say lightning doesn't strike twice in the same place, but try telling that to Reisuke Ishida.
The creative force behind the highly Qi rated Space Invaders Infinity Gene has struck gold again for Taito on the App Store with Groove Coaster, whose combination of pulsating rhythms and procedurally generated levels propelled it to the #1 spot on the July hit parade.
Not even Cave's latest bullet-hell blaster DeathSmiles could keep pace with Taito's roller coaster iPhone ride this month, even if it did withstand a late charge up the inside from Polarbit's rapid and resourceful Reckless Getaway.
Qis Top 10 iPhone games of July 2011
| Pos. | Game | Qi rating | Reviews |
| 1. | Groove Coaster | 8.8 | 4 |
| 2. | DeathSmiles | 8.6 | 7 |
| 3. | Kard Combat | 8.3 | 5 |
| 4. | Deadlock: Online | 8.3 | 3 |
| 5. | Swords and Soldiers | 8.2 | 9 |
| 6. | Shake Spears! | 8.2 | 4 |
| 7. | Deflex | 8.2 | 3 |
| 8. | The King of Fighters-i 002 | 8.1 | 5 |
| 9. | Reckless Getaway | 8.0 | 8 |
| 10. | Zombie Gunship | 8.0 | 4 |
N.B. While we only display the average score to one decimal place, the list is generated to further significant figures. We just don't show them all.
And, naturally, this is a static graph based on live listings which are subject to constant change as new releases and reviews emerge.
In order to provide a regular marker of the critical zeitgeist, however, we will continue to round up the best of the iPhone games released each month to provide the definitive Quality Index top ten.
Quality Index
