Sprint Drive First: Locks your teen's cell phone when her car goes faster than 10 mph. Incoming calls go directly to voicemail and an automatic text message says she is driving. In case of emergencies, three phone numbers and three applications can be programmed to circumvent the block. Available on Sprint, $2/month.
Teenage Speedster: Alerts parents when their child is in a speeding car—as a passenger or the driver. Available for iPhone, iPod touch, iPad, BlackBerry and Android, $2.
Phoneguard Drive Safe: Blocks incoming texts and sends a reply while car is moving. Delivers a Google map link indicating the location and speed of the vehicle. Calls to 911 are always allowed. Available for iPhone, Android and BlackBerry, free.
Car Parental Control: Follow the position and speed of your teen's car; a color-coded map shows her route. Available on the iPhone, iPod touch and iPad, $2.
Speedbump: Keep abreast of your teen's performance behind the wheel by receiving updates on her driving skills and patterns. Available for Android, $10/month.
DriveSafe.ly: Text messages are read aloud without a driver needing to touch the phone. A customizable autoresponder option is included. Available on iPhone, Android, BlackBerry, Windows Mobile, free.We've Got an App for That!
Family Circle's new app, Teen Driving Log, helps kids keep track of behind-the-wheel time required by states before they get their licenses. Teens can log hours, driving conditions and skills practiced before the big road test. Plus, countdown to license day! Available for iPhone, iPod touch and iPad, 99 cents.