# Span64: Construction Calc — Feet, Inches & Jobsite Tools

> Feet, Inches & Jobsite Tools (iPhone/iPad app by IRAKAI STUDIO SOCIEDAD LIMITADA.)

- Source: https://appshunter.io/ios/app/span64-construction-calc/id6789300863 (this page in markdown: same URL + `.md`)
- Developer: [IRAKAI STUDIO SOCIEDAD LIMITADA](https://appshunter.io/developer/943471024)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 30 MB
- Languages: English
- Released: 2026-09-02
- Data updated: 2026-09-17
- User reviews in markdown: https://appshunter.io/ios/app/span64-construction-calc/id6789300863/reviews.md

## What is Span64?

Exact trade math. Offline. Yours once.

Span64 is an exact feet-inch-fraction Calculator for carpenters, framers, contractors, and serious DIYers. Enter full equations, read stacked fractions clearly, convert between imperial and metric, and keep completed work on a persistent Tape.

THE CALCULATOR IS FREE

The Calculator is free. Jobsite Tools require a one-time unlock.

Add, subtract, multiply, and divide dimensions without ads. Calculator equations and results stay available on your Tape so you can reuse or share them later.

SPAN64 PRO: SEVEN JOBSITE TOOLS

• Triangle / Right-angle
• Area & Volume
• Concrete
• Board Feet
• Stairs
• Roof / Rafter, including common-rafter birdsmouth
• Studs / On-center

Preview every locked Tool with your own measurements before purchasing. A single non-consumable purchase reveals useful numeric results and unlocks all seven Tools forever. There is no subscription, trial countdown, or account.

BUILT FOR REAL WORK

• Exact domain math to 1/64 inch
• Tolerant feet-inch input
• Imperial and metric output where applicable
• Persistent Tape with notes and reuse
• Clear stair checks and focused jobsite forms
• Works without a signal after installation

Purchasing or restoring Span64 Pro requires a network connection so the App Store can verify ownership. Restore Purchases is available from Settings and the Span64 Pro screen.

Your measurements, equations, results, Tape entries, and notes stay on your device. Optional telemetry is off by default and never includes calculation content.

Span64 is a calculation aid. Verify measurements, structural decisions, and local code requirements before cutting or building.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Span64 Pro | $19.99 | one-time |



## Version history (last 2 releases)

### 1.0.1 — 2026-09-08

• Unlock Span64 Pro straight from Settings.
• Clearer store errors with a retry.
• Tools stay in Preview until your purchase is confirmed.

### 1.0 — 2026-09-02

No release notes.

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All apps by IRAKAI STUDIO SOCIEDAD LIMITADA: https://appshunter.io/developer/943471024

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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 2026-09-17.*