Kintell might be a bit more popular than upcoach. We know about 1 link to it since March 2021 and only 1 link to upcoach. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I used https://upcoach.com/ to setup a web dev accelerator in weekend for a mentor. Source: 11 months ago
One more thing: there are lots of platforms like Kintell https://kintell.com/ that can be used to test out consulting or advising business ideas. You'd need to have really solid expertise to offer of course, but as a way to test the market viability this is how I'd start. Source: over 2 years ago
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