The safety disclaimer, Please, DO NOT Snap and drive, is hilarious. Who will most likely capture a moment on their cell showing how fast they are traveling? The driver or a passenger? Which of the two require their total attention while traveling inside the vehicle?
The app manufacturer desires less (or zero) liability if the driver's attention is diverted by their product. Of course, app users most likely wanting to show off how fast they're going are driving. I can see the inside of the courtroom...
Prosecutor: Is your product very popular?
App Exec: Yes, it is very popular.
Prosecutor: How many people use your product?
App Exec: Our product has millions of users.
Prosecutor: It's safe to say many of your millions of users drive, correct?
App Exec attorney: Objection. Leading the witness.
Judge: Sustained. Please restate the question.
Prosecutor: How many of your users drive?
App Exec: It's hard to say. All kinds of people download our product.
Prosecutor: Does your company prevent people who drive from downloading your product?
App Exec: No.
Prosecutor: So, an unknown number of people using your product could be drivers?
App Exec: Yes.
Prosecutor: How long does it take for a user to snap?
App Exec: It depends.
Prosecutor: Humor me.
App Exec: Maybe a few seconds.
Prosecutor: A few seconds?
App Exec: Yes.
Prosecutor: So, a person, using your product, could have their attention diverted from driving for a few seconds, lose track of where their vehicle is going, and possibly cause an accident?
App Exec: Well... I...
App Exec attorney: Objection!
Prosecutor: I'll retract my question, your honor. No further questions.