# Construction Calc: TradeCalc — HVAC, Conduit, Concrete, Tile

> HVAC, Conduit, Concrete, Tile (iPhone/iPad app by Charles Dapaah-Siakwan.)

- Source: https://appshunter.io/ios/app/construction-calc-tradecalc/id6780137961 (this page in markdown: same URL + `.md`)
- Developer: [Charles Dapaah-Siakwan](https://appshunter.io/developer/1858231299)
- Category: Utilities, Business
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: English, French, German, Spanish
- Released: 2026-06-18
- Data updated: 2026-07-08
- User reviews in markdown: https://appshunter.io/ios/app/construction-calc-tradecalc/id6780137961/reviews.md

## What is Construction Calc?

Every calculator a contractor needs, in ONE offline app. Pay once, own it for life. No five separate apps, no per-trade packs, no subscription trap.

TradeCalc runs 100% on your device. It works in a basement, a crawlspace, or a job trailer with zero signal, because it never needs the internet. No account, no login, no data leaves your phone. Open it, run the numbers, and get back to work.

While the big-name calculators moved to monthly billing and lock each trade behind its own paid pack, TradeCalc gives you the whole toolkit for one Lifetime price. Every calculator also estimates the materials AND the cost, so you can quote on the spot.

WHAT IS INSIDE

Construction Math
- Add, subtract, multiply, and divide in feet, inches, and fractions
- Convert between feet-inches, decimal feet, and metric
- Built for framing, layout, and takeoffs

Electrical
- Ohm's Law (volts, amps, watts, resistance)
- Voltage drop over a run, so you size the conductor right
- Wire size and ampacity based on NEC 310.16
- Raceway fill at the 40% rule

Plumbing
- Pipe sizing for supply and drainage
- GPM flow so fixtures get the water they need

Coverage and Materials
- Tile, flooring, paint, and drywall
- Enter the room, get sheets, boxes, gallons, and waste allowance
- Instant material count plus cost

Concrete and Asphalt
- Slab and footing volume in cubic yards or meters
- Asphalt tonnage for paving and patching
- Bag counts, truck loads, and total cost

HVAC
- Air conditioning tonnage for a space
- CFM airflow for duct and register sizing

Every result is built to be read fast and trusted on site. Switch units, change the price per unit, and the material and cost totals update with it.

NO HIDDEN COSTS, NO DATA COLLECTION
Everything runs on-device. There are no ads, no trackers, and no analytics. We do not collect, sell, or share your data, because none of it ever leaves your phone. The Lifetime unlock is a true one-time purchase, not a disguised subscription.

WHO IT IS FOR
Electricians, plumbers, HVAC techs, carpenters, masons, pavers, remodelers, estimators, and DIY pros who want one dependable tool instead of a phone full of single-purpose apps.

PRICING
TradeCalc is free to try. Unlock everything with a one-time Lifetime purchase of 19.99, or choose a subscription if you prefer.

This app offers a one-time Lifetime unlock (non-consumable) of 19.99. It also offers a weekly subscription with a 3-day free trial, and an annual subscription. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period, and your Apple ID is charged for renewal within 24 hours before the end of the current period. Manage or cancel subscriptions in your Apple ID Account Settings. Any unused portion of a free trial is forfeited when you buy a subscription. Restore purchases from the app settings.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Premium | $3.99 | per 7 days |
| Annual Premium | $14.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Unlock | $19.99 | one-time |



## Version history (last 2 releases)

### 1.0.1 — 2026-06-26

Refinements and performance improvements across the calculators. Thanks for building with TradeCalc.

### 1.0.0 — 2026-06-18

No release notes.

## More apps by Charles Dapaah-Siakwan

- [PDF Translator: MultiDocX](https://appshunter.io/ios/app/pdf-translator-multidocx/id6756063357)
- [Rent Manager: Landlord](https://appshunter.io/ios/app/rent-manager-landlord/id6756917550)
- [90 Day Challenge: Run & Lift](https://appshunter.io/ios/app/90-day-challenge-run-and-lift/id6757021493)
- [Photos to PDF: Scan & Convert](https://appshunter.io/ios/app/photos-to-pdf-scan-and-convert/id6758024399)
- [Invoice Generator: Instant PDF](https://appshunter.io/ios/app/invoice-generator-instant-pdf/id6758076109)
- [Bill Organizer: Bills & Alerts](https://appshunter.io/ios/app/bill-organizer-bills-and-alerts/id6758636056)

All apps by Charles Dapaah-Siakwan: https://appshunter.io/developer/1858231299

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*