My initial reaction was that it's the wrong question to ask and that I already have other ways to make calculations.
But after checking the website roamcalc.com I realize it's like a web-based version of Soulver/Numi, two apps I really like. The fact you can offer this as a webpage is really cool.
Now, personally I'd still use Numi since I already have it anyway and I prefer native apps over web-based apps. But I think that you have an advantage in that web-based is more easily shareable.
So I'd focus on that advantage. Try to make it like GitHub Gists, for calculations. Promote to accountants, procurement departments, real estate agents, etc. Basically anyone working with calculations and needing to share them with others.
Also promote it in sub-Reddits like FIRE, etc. Create templates for them (retirement calculators, etc) that they can customize. Also do SEO keyword research for "calculator" and make templates for all of them. Try to get them ranking in Google.
Search for "how to calculate X" posts, turn those into templates, and share them with the author. They might be willing to link to them. Credit them on the template as well.
I think if you're able to find a specific demographic that gets (business) value from it, then you'll automatically start receiving feature requests. Some which you could charge for.
Some guesses would be team support, privacy controls, SSO, etc. But those are just GUESSES and you shouldn't build anything until people actually ask for it and seem willing to pay for it.
I'm glad you could see the vision and potential for this because I felt bad I couldn't see it beyond a simple calculator. It makes more sense now that you laid it out.
My initial reaction was that it's the wrong question to ask and that I already have other ways to make calculations.
But after checking the website roamcalc.com I realize it's like a web-based version of Soulver/Numi, two apps I really like. The fact you can offer this as a webpage is really cool.
Now, personally I'd still use Numi since I already have it anyway and I prefer native apps over web-based apps. But I think that you have an advantage in that web-based is more easily shareable.
So I'd focus on that advantage. Try to make it like GitHub Gists, for calculations. Promote to accountants, procurement departments, real estate agents, etc. Basically anyone working with calculations and needing to share them with others.
Also promote it in sub-Reddits like FIRE, etc. Create templates for them (retirement calculators, etc) that they can customize. Also do SEO keyword research for "calculator" and make templates for all of them. Try to get them ranking in Google.
Search for "how to calculate X" posts, turn those into templates, and share them with the author. They might be willing to link to them. Credit them on the template as well.
I think if you're able to find a specific demographic that gets (business) value from it, then you'll automatically start receiving feature requests. Some which you could charge for.
Some guesses would be team support, privacy controls, SSO, etc. But those are just GUESSES and you shouldn't build anything until people actually ask for it and seem willing to pay for it.
I'm glad you could see the vision and potential for this because I felt bad I couldn't see it beyond a simple calculator. It makes more sense now that you laid it out.
I second your SEO recommendations 🙌🏼