Unlimited plans without any contract also come bundled with other services. While some network carriers offer unlimited data transfer, there are others who limit this to only sending and receiving of emails. Some even offer a handset insurance scheme which allows users to insure their handsets by paying a monthly amount as premium against the policy.
Many customers still associate monthly plans with prepaid billing only. However, this is changing – while plans without contracts once only really catered for users with simple needs and didn't include bells and whistles, more and more smartphones are being offered on monthly plans with postpaid options.