per gig pricing per month
- AT&T sells 300 MB, 3 GB and 5 GB packages for individual and family plans. But it also offers âmobile shareâ plans with up to 50 GB of data spread across up to 10 devices. There is no unlimited option. - Sprint offers unlimited data for $30 a month or 1 GB for $20 a month per line.The cost of a line is $50 for one and less for more. - T-Mobile offers 500MB of data free and either 2 GB for $10/month or unlimited for $20/month for each line.Like Sprint, the cost of a line starts at $50 and is cheaper for more. AT&T sells 300 MB, 3 GB and 5 GB packages for individual and family plans. But it also offers âmobile shareâ plans with up to 50 GB of data spread across up to 10 devices. There is no unlimited option. - Sprint offers unlimited data for $30 a month or 1 GB for $20 a month per line.