LetsCloud Instances include free outbound data transfer, starting at 1000 GB / month for the smallest plan. Excess data transfer is billed at $0.01/GB. For example, the cost of 1000 GB of overage is $10. Inbound bandwidth to instaces is always free
Transfer allowance is pooled cumulatively at the account level, not individually LetsCloud Instances. If you have two instances with 1000 GB / month allowance each, you can transfer 1900 GB of outbound data with one Instance and 100 GB with the other, and you will not accrue any overage. Accrued transfer does not roll over between months.