Building a civil engineering calculator app — what tools would engineers actually want next?

Hey Product Hunt

I’m building Civil All in One Calculator, a mobile app for civil engineers, construction professionals, and engineering students.

I started working on it after noticing how many routine engineering calculations are still spread across spreadsheets, websites, separate apps, and manual formulas.

The app has grown to include 23+ calculators and tools covering areas such as concrete quantities, steel/rebar, structural calculations, surveying, construction calculations, and unit conversion.

While building it, one challenge I’ve run into is deciding what is genuinely useful to engineers versus simply adding more calculators to increase the feature count.

For example, I’m considering expanding into more advanced tools around quantity estimation, BBS/rebar, structural calculations, project calculations, and reports.

Before building those, I’d rather learn from people who actually deal with these workflows.

If you’re a civil engineer, engineering student, contractor, or have built software for the construction industry:

What calculation or repetitive task would you most like to have simplified on your phone?

And for other makers: when you're building for a specialized professional audience, how do you decide which features are worth building next?

I’m particularly interested in hearing about workflows that people still handle with Excel, websites, notebooks, or multiple different apps.

I’ll use the feedback here to help prioritize what I build next