# TradeCalc Pro: Stair & Rafter — 2D Blueprint Carpenter Math

> 2D Blueprint Carpenter Math (iPhone/iPad app by Gunal Bondre.)

- Source: https://appshunter.io/ios/app/tradecalc-pro-stair-and-rafter/id6807325829 (this page in markdown: same URL + `.md`)
- Developer: [Gunal Bondre](https://appshunter.io/developer/1896021121)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English
- Released: 2026-11-07
- Data updated: 2026-11-08

## What is TradeCalc Pro?

TradeCalc Pro is the visual construction calculator built for carpenters, deck builders, framers and general contractors.

Stop guessing stair risers or converting tape fractions to decimals in your head. TradeCalc Pro draws live 2D blueprints that update with every keystroke.

LIVE 2D BLUEPRINTS
• Stair stringers: exact risers, treads and stringer throat depth, down to 1/16".
• Common rafters: bird's mouth, plumb cut and seat cut, drawn as you type.

IRC STAIR CODE CHECKS
• Instant pass/fail against IRC R311.7 riser and tread limits.
• Catch problems before you cut, not at inspection.

EXACT FRACTIONAL MATH
• Add, subtract, multiply and divide feet, inches and fractions directly.
• Precision down to 1/64" for cabinetry and millwork.
• Exact rational math engine with no decimal rounding errors.

BUILT FOR THE JOB SITE
• Glove-friendly keypad with large touch targets and haptic feedback.
• High-contrast dark theme for bright outdoor light.

PROJECT TAPE & PDF CUT SHEETS
• Save calculations into job folders (for example, "142 Elm St – Deck").
• Send a clean 1-page PDF cut sheet to your crew or lumber yard by text, email or AirDrop.

FREE vs PRO
• Free: fractional math, live stair and rafter diagrams, and IRC code checks.
• Pro: unlimited project folders, lumber takeoff, and PDF cut sheet export.
• Choose Monthly, Annual (with a free trial for new subscribers), or a one-time Lifetime license.

Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings > Apple ID > Subscriptions.

Privacy Policy: https://niprajdigital.com/privacy
Terms of Use: https://niprajdigital.com/terms
Eula - https://www.apple.com/legal/internet-services/itunes/dev/stdeula

TradeCalc Pro is a calculation aid. Always confirm requirements with your local building authority.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| TradeCalc Pro: Stair & Rafter | $5.99 | per month |
| Trade calc pro yearly | $34.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| TradeCalc lifetime | $89.99 | one-time |


## Is TradeCalc Pro safe?

Not enough ratings yet to assess TradeCalc Pro.

## Is TradeCalc Pro legit?

TradeCalc Pro: Stair & Rafter appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for TradeCalc Pro is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.1.0 — 2026-11-07

No release notes.

## More apps by Gunal Bondre

- [Smira - Ai Expense Tracker](https://appshunter.io/ios/app/smira-ai-expense-tracker/id6765641591)
- [Subscription Hub - Manage subs](https://appshunter.io/ios/app/subscription-hub-manage-subs/id6770021293)
- [Rekindle habit tracker](https://appshunter.io/ios/app/rekindle-habit-tracker/id6790036901)

All apps by Gunal Bondre: https://appshunter.io/developer/1896021121

---

*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 2026-11-08.*