WhatsApp is the world's most popular chat app, but it can be daunting if you're new. Here's our guide on how to use WhatsApp!

Want to spruce up your Android phone when someone calls you? Here's how to use Google's Calling Cards feature.

Use the Who can find me by number? option on the profile setup page to control whether or not people who have your number can find you on Signal.

Using your contacts as a training tool can turn voice recognition from an occasional helper into a much more reliable ...