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Span64 Construction Calculator

Feet-Inch Math. Yours Once.
Roberto Garrido · Utilities
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App info

Developer
Roberto Garrido
Category
Utilities
Released
Sep 2, 2026
Version
1.0.7 (Oct 21, 2026)
Price
Free
Size
29.4 MB
Requires
iOS 18.0
Age rating
4+
Languages
English

In-app purchases

Span64 Pro$19.99
Current prices, App Store US.
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About Span64 Construction Calculator

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…
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