In Subscription Plan, it is just credit-fixed for 1 month but speed limited as 1 Mbps except for first 3 seconds. Most Mudfish items are available at $ 0.88 for 1 month It uses $ 0.029 day by day. https://mudfish.net/forums/6/topics/47855 Pay-Per-Traffic users can use Mudfish Items as a nodes' maximum capable speed at that time. Without extra-pay but weighted. It's flexible how long will going your credits. The Pay-Per-Traffic plan consumes 2 times as based capacity of a node's up and download traffic.