How much data does Facbook and Twitter use up on the iPhone 4s?

I'm on Vodafone and i have 500mb a month. I was just wondering if i use these two applications how much data it will use and if i have enough data for them each month?

Sorry friend, i don't have knowledge about the facebook and twitter use of data on the iphone 4s.So, i suggest you to search it on google so that you can find lots of information about it.

Yes you will have plenty of data leftover even if you check them constantly. It is downloading music and video that uses up your data allowances. You can get an App to monitor the data you use such as "3G Watchdog", but I would expect the 4S to have its own data usage calculator.

I think about 100Mb, and your data plan is enough for you.