Most platforms charge by subscriber count, not emails sent.
That sucks if you run a free app or tool with thousands of users but low revenue. You end up paying $100s/month even if you only send 1 email a week.
I'm building a lean and modern email platform that charges only for what you send. No subscriber limits. No bloat. Perfect for indie hackers, bootstrappers, devs with large free user bases.
Powerful segmentation lets you send emails to the users you care about.