I'm going to build a small online service with only one product and a subscription fee by month. I had to compare the Payment Gateways to know which one fit my needs.

To do this comparison, I made a small spreadsheet which could (maybe, or not) help you. Here it is: https://docs.google.com/spreadsheets/d/12-sWEe-gsoGm0kT5LMcM...

Feel free to add comments if you find any issue.