Observed arrival · 2026-09-10

TradeCalc, a construction calculator with a job-site memory

gettradecalc.com Observed source

Editorial interest 81/100 Selection signal · not a rating of the site

An iPhone and iPad app for construction math, offering 32 offline tools for mixed units, layouts, photo markup, cut lists, estimates, and saved jobs.

Landing page captured for the 2026-09-10 issue.

Field notes

The app organizes calculations inside named jobs alongside notes, plans, and reference photos, rather than treating each result as a one-off lookup. Its photo layer supports up to 12 images per saved calculation, with editable arrows, labels, captions, sharing, and PDF inclusion. A separate marking view presents positions as a checkable sequence, while the site says calculations, saved jobs, and the Field Guide remain available without a signal. Photos supply context; measurements still come from entered values.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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