App Store verdict · build Pain point

Cost estimator for trades with stable quotes

Built for Trade professionals (plumbers, painters, contractors) who need to send editable quotes to clients without the entire estimate recalculating unpredictably..

“Surely someone has told you guys by now that this software absolutely cannot be used to share quotes with clients? When they ask for the most minor of changes, …”

The receipts — real demand

“Surely someone has told you guys by now that this software absolutely cannot be used to share quotes with clients? When they ask for the most minor of changes, the ENTIRE estimate shifts unpredictably, making you have to spend an extra hour just to try to make it look normal enough to send it back to the customer without hearing, “how come the type of paint changed when all I did was ask you to fix a toilet?” Abso…”
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Every corroborating quote, the source receipts, and the community echo. One email, no payment.

6.1 / 10 · demand score
Pain 8
Willingness to pay 6
Feasibility 5
Specificity 9
Audience 5
Competition 6

Why this is a gap

Surfaced from a high-intensity complaint with clear willingness to pay and a specific, reachable audience.

The market

Trade professionals (plumbers, painters, contractors) sending client quotes need stable, editable estimates without cascading recalculations. No search volume data, but the pain signal shows active user frustration with existing estimate software.

Competition & the opening

Crowded market · 6/10

ServiceTitan, Toast, and general invoicing tools (Square, FreshBooks) offer estimate features, but the gap is quote stability—editable fields that don't trigger unwanted recalculations of labor, materials, or totals.

What's hard to build

Building an estimate engine that supports flexible edits while maintaining formula integrity is genuinely hard. You must track dependency chains (material cost changes labor duration? Does labor affect markup?), version estimates for legal/audit purposes, and provide client-facing edits without breaking your internal logic.

Why now

Construction and trades estimating software lacks quote-locking features, forcing manual recalculation on every client revision.

How you'd monetize

$49–99/mo SaaS per tradesperson