I am building a SaaS in public in under 24 hours on Twitter.

Totally legit question and I am happy somebody asked it. Let me try to answer that for you and everybody.
You are right. Yes it's a managed blog ✅
Yes it's a newsletter platform (like Substack) ✅

Growth Journal?
I didn't know what else to call it, so called it Growth Journal. The reason for this was that it will help creators to track various metrics such as MRR, ARR, Churn etc. over a period of time. The same info can be useful for somebody else looking to see the growth trajectory of the product or progress.

Now, what exactly is the differentiator here and why I created it?

I follow so many IndieHackers on Twitter who are building in public. As a curious user and product maker, I wanted to see at what point in their building progress, they started getting traction.

Searching those points on Twitter was a pain. Also, they were having their own newsletters on Substack, Threads on Twitter, blogs on some other platforms, YouTube channels, etc., There was no way I could see all those related things (scattered all over Internet) in one place for a particular date.

"What if there was a platform that showed me the date-wise Tweets, blogs, youtube shares, and their growth graph at that date, all on their own domain as their own brand site." That's when I thought of creating ProductPottery.

Why 24-hour challenge?
It's been quite a time since I thought of this idea, and in fact, recently began to create html mockups but never got time to actually start working on it, due to regular work schedule.

This challenge, I took, just to make myself accountable to at least get something in public, no matter how finished or unfinished it was. It was an exciting first-time experience, but I must say, it's not something that I would do again (not in near future at least). The reason is it's very tedious to do stuff and post your updates live in public in that short time span. I just had to try it for fun and I did.

I hope I could create something that can be useful to people.

Thanks again for your question. It just gave me a few ideas for my blog posts 😀

Thanks

Thanks.

Thanks. Sounds good. I'll see.

Thanks

Thanks. Indeed it was fun today. 😀

I join in the wishes.

Thanks.

I can't wait either 😀

Thanks a lot Krystie.

Not much, but it's a marketing tactic to get you a few followers from here and there. Don't blame the player, blame the game I guess.