Shopping by cellphone has a few kinks

ScanBuy Shopper, on the other hand, casts a massive net. It scours Amazon Marketplace, PriceGrabber, Shopping.com and Yahoo Shopping for prices, and it finds some real steals.

Bottom line: Mobile price comparison systems leave much to be desired, but I'd still recommend Frucall and ScanBuy (if your phone supports it).

Under the right circumstances, both of these free services can answer a question that has plagued shoppers for a decade now: "I wonder if I could get this cheaper online?"

SO MANY CHOICES

SERVICE	PRO	CON
Frucall	Normal voice call	Results take longer to say than read
ScanBuy Shopper	Searches several sites	Won't work on many phones
Mobsaver	Easy to text barcode	Searches only two sites
Froogle SMS	Uses keywords, not numbers	Can return wrong product
Pronto	Full search, good bargains	Very slow on phone