If you wish to bring down your wireless bill, download and use a VoIP app for making calls instead. Most apps are easy to use, and are low-cost or free depending on how you make your calls. Here are four of the best VoIP apps in the market today.

WhatsApp
The increasingly popular WhatsApp provides more than just text chats between users.

You may be thinking about replacing your traditional phone system with VoIP. But you have some reservations. How does VoIP work? Is it really a reliable service? Do the cost savings really live up to the hype? If you’re unfamiliar with VoIP, there are some alternative, low-cost options available for you to test out beforehand.