WhatsApp is one of the most popular messaging apps on the planet. Here's how to add your iOS and Android contacts to your WhatsApp list to easily stay in touch.

If you just bought a new Android phone for yourself, here's how you can transfer contacts from an old Android phone to a new Android phone.

Android users can now create full-screen calling cards for anyone on their contact list, and even customize them with funky ...

If you've recently switched to Android or you use an iPad or MacBook, you can transfer your iCloud email messages and contacts to your Android phone.

How to merge duplicate contacts on Samsung phones The Samsung Phone app has a similar feature for combining contacts and more functionality. You can merge contacts that share the same name, email ...

You can transfer contacts from an Android phone to another Android by syncing them to a Google account, or by sending a vCard file.