Yes, there are a number of features that are only available on the PRO plan. Have a look at the pricing table above for the PRO only features. There is a fair use policy in place, which means that we'll contact you when your website is negatively affecting other users on the platform or when the costs that we incur for offering this service to you are getting too high. In any case, we'll discuss this with you first before we take any steps. Only in extreme cases will we take immediate action.