Product · In development
Keystone E-Calc
A Canadian Electrical Code calculation suite for the truck, the panel room and the plan table. Built to work with no signal and to show its work.
Pre-launch. Keystone E-Calc is in active development and is not yet available on the App Store or Google Play. Join the waitlist to get early access.
Features
What it does
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Section 8 service load calculations
Residential calculated load under CEC Section 8 (Rule 8-200), with support for electric vehicle energy management systems (EVEMS). Size a service with EV charging in the picture, and see how a managed load changes the result.
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"Show the Math" audit drawer
Open any result to see every input, every step and the exact code citation it came from. Hand it to an inspector, a customer or your foreman and let the numbers speak for themselves.
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Smart "Run" chain calculations
Link calculations along a run so one result flows into the next step. No retyping values and no transcription mistakes between screens.
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100% offline execution
Every formula and code table lives on your device. The app makes no network calls to calculate, so it works the same in a basement as it does in the office.
Ergonomics
Designed around the jobsite
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Glove-sized controls
Oversized keypads and toggles you can hit with work gloves on.
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Dark and high-contrast
Readable under a work light and easy on the eyes in a dark mechanical room.
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Instant results
Answers update as you type, without deep menus or a submit button.
A reference tool, not a replacement
E-Calc helps you work faster and check your work. It doesn't replace your judgement, the design drawings, or the inspector. The Authority Having Jurisdiction always has final say. Read the terms.
Early access waitlist
Be first on the tools
Join the waitlist and we'll email you when early access opens. We'll never sell your address.