Dont Text and Drive provides useful functions to use while driving like speedometer, compass and GPS maps.
It also has a gentle reminder to drive safely and not text while driving.
"Continued use of GPS running in the background can dramatically decrease battery life."
This app is well intentioned, but for $5.99, it should be flawless. I do want the phone to essentially lock when driving. However, for the app to send push notifications over and over as one is driving seems ridiculous since it's on vibrate and the GPS running is already depleting a lot of the battery life.