Using messaging apps to text, make voice and video calls while connected to a Wi-Fi network is pretty efficient. One of the reasons people use messaging apps is to save money and avoid mobile bills as much as possible. Continue reading this article to learn which messaging apps consume the least data. Lastly, voice and video calling apps also consume a lot from your data plan. Other apps such as Spotify and Netflix also kill your data plan. For instance, social networks such as Facebook, Instagram and Twitter are known to eat your data plan instantly. That being said, whenever you are NOT connected to your unlimited Wi-Fi, your data plan is being consumed. Data usage is the amount of data you use when you are connected to your cellular network. Ever wonder why your cellular plan is finishing in less than 30 days? Well, it’s because you are using apps that consume too much data.