# RAFTER Construction Calculator — Cut it right the first time

> Cut it right the first time (iPhone/iPad app by Aditya Wirayudha.)

- Source: https://appshunter.io/ios/app/rafter-construction-calculator/id6778809913 (this page in markdown: same URL + `.md`)
- Developer: [Aditya Wirayudha](https://appshunter.io/developer/830166045)
- Category: Utilities, Productivity
- Price: $19.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-06-15
- Data updated: 2026-06-28
- User reviews in markdown: https://appshunter.io/ios/app/rafter-construction-calculator/id6778809913/reviews.md

## What is RAFTER Construction Calculator?

The construction calculator apps tradespeople relied on for years now charge rent — $40 every year, forever, for the same math. Rafter is the alternative: pay once, own it forever.

Rafter does jobsite math the way you think it: feet, inches, and fractions — on a real keypad, with the working shown on every answer.

PAY ONCE. NO SUBSCRIPTION. NO ACCOUNT. NO ADS. WORKS OFFLINE.

FEET-INCH-FRACTION CALCULATOR
- Add, subtract, multiply, divide in feet-inches-fractions (1/8", 1/16", 1/32")
- Full dimensional math: length × length = area, area × depth = volume — straight to cubic yards
- Tap the display to convert: decimal feet, inches, yards, meters, centimeters, millimeters
- The honest ≈ mark: when a result can't land exactly on a fraction, Rafter tells you

RAFTERS — Common, hip/valley, and jack lengths from pitch and span. Plumb and level cut angles. Jack table at 12/16/19.2/24" OC. Pitch ↔ degrees ↔ percent, live. The framing-square per-foot number on every result so you can verify it yourself.

STAIRS — Total rise in, full layout out: risers, treads, total run, stringer length, and the stock board to buy. Code check against IRC defaults (editable) with clear pass/fail badges. Adjust riser count and watch everything recompute.

SQUARE & LUMBER — Diagonal squaring with out-of-square deviation. Board feet with cost, the way lumber is actually sold.

PAPERLESS TAPE — Every answer lands on the tape automatically. Recall any number with a tap. Star and label figures by job. Text or CSV the whole list to the contractor.

BUILT FOR THE JOBSITE
- Huge keys, extreme contrast, readable in direct sun
- Instant answers — no Calculate button, no spinner, no signal needed
- Siri & Shortcuts: ask for a rafter length or stair layout hands-free
- Your numbers never leave your phone. No data collection. Nothing to log into.

One price. Every future update included. That's the whole deal.


## Version history (last 1 release)

### 1.0 — 2026-06-15

No release notes.

## More apps by Aditya Wirayudha

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- [EV kWh Calculator - Charge](https://appshunter.io/ios/app/ev-kwh-calculator-charge/id6760639014)
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- [Expose — Exposure Calculator](https://appshunter.io/ios/app/expose-exposure-calculator/id6760650330)
- [Fuel - Gas Mileage Tracker](https://appshunter.io/ios/app/fuel-gas-mileage-tracker/id6760706393)

All apps by Aditya Wirayudha: https://appshunter.io/developer/830166045

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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 2026-06-28.*