This will make you save 50% of your mobile data!!
Simple. A VPN searches the site that you want to connect and delivers it in your smartphone. A diference of the Opera VPN is in the fact of “compress” the data before send them. Everytime you visit a website, use Facebook, since if you use the Opera VPN, you are reciving compressed data, so you are using less mobile data.
There is no Opera VPN for IOS but it exists for Android!
Download it here