2 weeks ago, I launched Scrappr.io a very simple SaaS for monetize a way to get qualified mails for cold emailing for example.
We had only 6 differents customers for the moment, il's not a lot but there is another good stat to see the potential.
6 of this users (100%) are came back for paid some new mails ! 🙂
I can deduct that I have a good product behind and so a potential sustainable business !
100% come back > amazing!