I have been indie hacking for almost a year now slowly and steadily building Blanq. Up until early Feb this year, I had $0 MRR.
Did I have active users?
Yes -Individuals, small businesses, marketing firms, etc. It required a good amount of effort to support them. It made it even harder when you know you are not paid. I was hoping that someone would see value in my work or, would hit free limits and they would upgrade.
Guess what, nobody upgraded.
Several experts swear by the Freemium model and how it helped them grow their SAAS over the years. It was not working for me though.
I then switched to Trial and gave all my customers a 15 day period to upgrade.
Within a few days, I landed my first paid customer, then second, and then third.
MRR is now $45 - a small amount but definitely better than $0 I suppose :) and I am in the zone of profitability.
I believe, Freemium is not for Indiehackers. If it works for you - good but, if it's not then give Trial a shot.