PrestaBay module is available in two different version.
1) Startup version. Fixed price cost 199$. 
2) Professional version. Monthly cost 29$ (or annual 228$).

The main difference between this two version connected to a number of features.
For example Category Mapping, Store Mapping, Feedback and Message Managment, Ebay item data in PrestaShop product, etc. available only in Professional Plan.

Also, for seller used Startup version we limit the number of items can be listed monthly. This plan also does not include updates and after tree month of used, technical support is paid.