Micro saas | Pay up front or free trail

Hi!

I'm preparing to launch a micro saas service on Producthunt in the near future.

This is mye first launch ever and wanted to know if you have any preferences on whats the best payment strategy.

Free trail (thinking 7 days) or pay up front. As said, the service is in the micro saas segment. My plan is to charge $5 a month. Please tell me if you need more context in order to give a better answer.

The service is a feedback loop for content creators who send newsletters.

Thanks!