This charcoal teeth whitener has a cult following on Amazon—but does it work?

Apple’s favorite app of the year wants you to unplug

Calm assists with sleep and stress relief. It’s been downloaded 6 million times.

Waze sent commuters toward California wildfires, drivers say

Users warn apps like Waze taking them through neighborhoods near fires.

Google says the mobile gaming industry is failing women gamers

Women make up half of mobile gamers but the demographics of game developers, the hardcore gaming culture and the games themselves are still mostly male.