Car Travel

Get a traffic report

So you can stay hands-free on the road, Aha Radio reads you the latest GPS-enhanced traffic reports on a pre-entered, customized route, using Clear Channel sources and updates from other drivers. The app also announces news, Facebook and Twitter posts, and points of interest along the way.

Cost: Free.

Runs On: iPhone/iPod Touch.

Score a parking spot

Using your phone’s GPS, Primo Spot provides you with a 3-D map highlighting the rates of the nearest parking garages and the availability of street parking around you. (It can also tell you about nearby bike racks.) It’s available for Boston and New York, with more cities on the way.

Cost: $2.99.

Runs On: Android, iPad, iPhone/iPod Touch.

Avoid tickets

While it isn’t quite a radar detector, the automated voice of GPS-enabled Trapster gives drivers warnings about speed traps, road cameras at intersections, checkpoints, and common police waiting areas—it’s also all laid out on a map.

Cost: Free.

Runs On: Android, BlackBerry, Garmin/TomTom, iPad, iPhone/iPod Touch, Palm WebOS, Symbian, Windows Mobile.