* You can cancel anytime before the trial expires and you won't be charged for the usage. Only once per user.
** Once you surpass the allocated resource, you will be charged an extra $0.004 per upload, $0.25 per 1 GiB of storage, and $0.15 per 1 GiB of outbound bandwidth.
*** Files uploaded to your own storage are not subjected to the storage and bandwidth limit, and will not be charged for storage and bandwidth usage.