Responses are basically unlimited and your account can be used to run surveys for months at a time. There is no charge for additional responses.
Survey-Hosting.com was built for surveys collecting less than 10,000 responses. There is no quota imposed on EZHost users that want to collect large numbers of responses. If you're allowing people to save and resume, or preloading data, your surveys will load faster when the total number of responses is kept within the recommended range. Standard EZHost accounts are given 20MB of storage space. This is more than enough space for several survey projects, graphics and HTML pages. A typical survey with 50 single-choice or weighted scale questions can collect over 30,000 responses before filling the storage space.
EZHost is flexible and will not close your survey when the space is used up. Instead, you will be notified via email with instructions on how to reduce the account size. Then, you can either close your survey or collect more responses in an fresh database.