# RafterMate: Construction Calc — Carpenter Calculator. Buy Once

> Carpenter Calculator. Buy Once (iPhone/iPad app by Cortex AI LLC.)

- Source: https://appshunter.io/ios/app/raftermate-construction-calc/id6776940075 (this page in markdown: same URL + `.md`)
- Developer: [Cortex AI LLC](https://appshunter.io/developer/1896521564)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 2 MB
- Languages: American English
- Released: 2026-06-11
- Data updated: 2026-07-25
- User reviews in markdown: https://appshunter.io/ios/app/raftermate-construction-calc/id6776940075/reviews.md

## What is RafterMate?

RafterMate is the construction calculator you buy once — no subscription, no account, no ads.

Built for carpenters and framers, it does the feet-inch-fraction math you do all day, then adds the trade tools you actually reach for — each on its own visual screen with a live blueprint diagram, accurate to 1/16".

THE CALCULATOR
- Feet-inch-fraction, decimal feet, yards and metric - add, subtract, multiply, divide
- Paperless tape that remembers every step
- Area, volume, square feet and cubic yards

THE PRO TOOLS (one-time unlock)
- Rafter - run + pitch to rafter length, plumb/seat/birdsmouth cuts, ridge and overhang
- Stair - total rise to risers, treads, stringer length and the bottom-riser drop, with live IRC code warnings
- On-Center - wall length + 16"/19.2"/24" spacing to stud/joist counts, mark positions and wall-framing material
- Roofing - roof area to squares, shingle bundles and sheathing
- Area & Volume - slabs, footings and piers to square feet and cubic yards of concrete
- Board Feet - thickness x width x length to board feet and cost
- Cut List - your pieces + stock lengths to a waste-minimizing, kerf-aware cut plan
- Miter - crown and corner miter + bevel angles

WHY RAFTERMATE
- Buy once. No subscription. Ever.
- Works fully offline - no account, no sign-in
- Universal - one purchase covers iPhone and iPad
- Validated against pro reference math to 1/16"

Pay once, open to the calculator, get to work.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Tools Unlock | $9.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2026-07-23

NEW TOOLS
- Hip/Valley - regular hip/valley rafter lengths plus the full jack rafter cut list
- Roofing - roof area to squares, shingle bundles and sheathing
- Miter - crown and corner miter + bevel angles

AND MORE
- Save & recall named jobs in every tool
- On-Center now counts wall-framing studs and plates
- Cut List handles multiple stock lengths and shares the plan
- Area & Volume adds round columns, piers and footings
- Board Feet reckons on nominal sizes with quick presets
- Bug fixes and performance improvements

### 1.0 — 2026-06-11

No release notes.

## More apps by Cortex AI LLC

- [BrickFolio for LEGO® Sets](https://appshunter.io/ios/app/brickfolio-for-lego-sets/id6742806413)

All apps by Cortex AI LLC: https://appshunter.io/developer/1896521564

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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 2026-07-25.*