Running on the O2 network, GiffGaff has become pretty popular in recent years with mobile phone users wanting to get the most for their money. And since they run off O2, users also have access to great coverage and 4G browsing speeds up to 5x faster than regular 3G, providing they’ve got a 4G enabled smartphone. GiffGaff are different in that they like to keep things simple, which is why they offer deals that don’t require you to sign a contract, and you can change your plan every month if you like – there really is no limits. GiffGaff likes to keep its members at the heart of everything they do, and if you choose to join GiffGaff you’ll become a valued member of their community. And with free GiffGaff to GiffGaff calls available on all deals, we wouldn’t be surprised if your family and friends switched to GiffGaff too!