Welcome to the weekly iPhone Quality Index (Qi) games round-up, giving you the LOWdown on the HIGH scorers every Friday on these illustrious pages.

As you may already know, Qi trawls the web for iPhone game reviews from the world’s most respected online and print sources.
Qi then applies its own magic formula to each site (such as 148Apps, Macworld, and TiPB) to establish a single definitive Qi score for each iPhone app and game.

Every little helps

Heading off to Tinseltown and into the #4 position on this week’s Quality Index chart is the female five-and-dime favourite from G5’s time-management game Supermarket Mania 2, which has scanned a trio of rave reviews through its tills for an 8.7 Qi receipt.

Nikki and her three convenience store cohorts have been summoned by Uncle Ross to turn around the fortunes of his troubled supermarket chain, whilst fending off the vengeful deeds of chief competitor Mr Torg.

With its predecessor recently finding itself a spot on our top five business management sim shelf, Supermarket Mania 2 demonstrates similar professional acumen and nous across 80 levels of frenetic milkshake-mixing, inventory-checking, and staff-recruiting.

G5 Entertainment’s stock has never been higher on iPhone, with TouchMyApps, for instance, observing of Supermarket Mania 2: “Everything is extremely well animated, and the color palette is bright and cheerful and makes things easily discernable from each other.”

Under the sea

With iOS gaming continuing to evolve, entertain, and excite at a frightening rate, it wouldn’t be remiss to say that the touchscreen could one day prove mightier than the control pad.

Launching Pad Games’s side-scrolling, finger flicking arcader Mighty Fin provides further proof of this potential sea change, as the eponymous fish leaps merrily over obstacles and swims stealthily past sharks.

You guide your underwater voyager through golden isles, backwater bays, and arctic ice caves by tapping on the face of the iPhone, releasing your digits to send him shooting into the air.

Grab trails of bubbles en route to rack up the high scores and dress Fin up in outlandish costumes for your own amusement in a title Slide to Play describes as, “a very polished one-button game that's sure to give you at least an hour or two of fun before you'll want to get out of the ocean.”

You can get the up-to-date information about which games are reviewing best over at the Quality Index.