Examples of apps to curb texting while driving

Some services that aim to curb distractions from phones used while driving:

— Cellcontrol: This service from ObdEdge LLC uses a $60 device that plugs into the car's onboard diagnostics port, which is usually under the steering wheel. A separate application for the driver's phone costs $25 to download and $8.95 a month to use. The phone connects to the device in the port through wireless Bluetooth technology. When the device detects that the car is moving, it tells the phone to lock texting, calling or both, depending on the user's settings. Cellcontrol works with BlackBerrys and phones running Windows Mobile and Symbian software. Originally designed for companies to use in their fleet cars and trucks, it is now marketed to consumers as well.

— iZup: This application from Illume Software uses a phone's GPS chip to determine if it's in motion, then locks predetermined phone functions such as texting and calling. The service can't tell if you're the driver or the passenger. To use the phone as a passenger, you must have a password and go to iZup's Web site to temporarily disable the service. The service works on BlackBerrys, Windows Mobile and Android phones. The cost is $4.95 per month or $49.95 per year.

— DriveSafe.ly: The iSpeech Inc. application doesn't detect if you're driving. Instead, you tell it that you're driving by turning it on. The app will then will read incoming text messages aloud. If you forget to turn it off after getting out of the car, DriveSafe.ly could create some embarrassing moments. The service is available for BlackBerrys, iPhones, Android and Windows Mobile phones. A free version reads out only the first 25 words of each message. The "Pro" version costs $13.95 to buy, with no service fees.