Sure, they might have been active in online communities and "spammed" their app very time someone was looking for a habit tracker, but it's far from cold calling and talking with customers 6 days a week.
I understand that all niches are different. And from what you shared, it seems like you are in a big B2B business, which I believe requires more cold calling. But not everyone is doing consulting or building for big businesses. There are people, here and on other social networks, who build simple SaaS tools or macOS apps that can make a decent living off them.
From what I saw, marketing is about data and a lot of money. If you don't have that, it's about having a big profile online account that people follow and trust - but I'm just not the person to build that, posting my stream of consciousness multiple times a day makes me cringe and my jokes are not funny. So I went B2B because I spent my career in large enterprises and understand them.
The same thing applies, though - people buy solutions from people they trust.
Offer solutions to problems, not products. Don't talk about all your features - ask them whether they have the problem you're solving and tell them about your solution. You'll have to get creative to get them talking - model situations, past successes and case studies of your other clients... Don't try to milk them - just set a fair price and be open about it, people don't like feeling you're going to take advantage of them. Build rapport, friendship and trust.
Check out how Michael Scott sells. I'm doing it just like him, it really works: https://www.youtube.com/watch?v=vYWwfdb2A88