You can add contacts on Skype by opening your Contacts list and searching for a name, phone number, or email address. Here's how to do it.

When you send or receive mail to or from someone in Gmail, a record of that person's name and email address is made in Gmail's contacts list so that you can quickly refer to people you've ...

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.

You will notice that the phonebook of your Android smartphone regroups contacts from different services (Google account etc) all together. You can configure Android to only display the contacts who's ...

You most likely have duplicate contacts with multiple phone numbers in your contacts list that are very unorganized, but iOS 7 makes it easy to remedy this.