apps

China’s ride-hailing companies try to quell the smell in cars where some drivers sleep

China's ride-hailing car drivers work long hours to get enough fares, and often live in their cars. Companies and passengers are penalizing drivers for smelly vehicles.

Using an app to rate food for nutrition? Take the results with a grain of salt

Food apps can help you figure out what's in your food and whether it's nutritious. Just scan the barcode on the packet with your phone. But different apps can give very different results. Here's why.