PrimoSpot provides block-by-block real-time information on street-parking rules, plus parking-lot locations and fees. Unfortunately, PrimoSpot so far only covers New York, Boston, and Seattle. ($2; iPhone, Android, BlackBerry)
Parkbud will alert you when your parking meter is about to expire, once you set its simple alarm. It also uses GPS to help you locate your car if you’ve forgotten where it’s parked. (iOS only)
Parkdroid performs the same tasks for Android users. Its GPS mapping functions are “a bit clunkier” than Parkbud’s, but this free app is still “as intuitive as it gets.”
Parking in Motion is an “amazing” tool if you’re simply looking for a lot or garage. Its maps pinpoint 26,000 locations in 330 cities, and it’ll even direct you toward the cheapest rates. (iPhone and Android)
Source: Portland Oregonian