Electrician Field Calculator

NEC-based field calculator for US electricians.

Fast field math, explainable results, local-only storage, and one-time Pro unlock.

Pre-launch review access is handled by email. The final App Store listing URL will replace this review path after approval.

Electrician Field Calculator dark mode home screen

What It Does

  • Voltage drop, conduit fill, box fill, wire size, ampacity, grounding, breaker sizing
  • Transformer, motor circuit, panel schedule, and material takeoff helpers
  • Local history, saved jobs, PDF export, and debug package sharing

Product Positioning

  • Field-first workflow
  • Explainable steps and assumptions
  • Offline after install
  • No subscription at launch

Unlock

One-time Pro unlock

Free mode

  • 3 runs per calculator
  • 15 total free runs across the app
  • Core workflow preview before paying

Pro mode

  • $19.99 one-time unlock
  • All 13 calculators unlocked
  • Saved jobs, history, and US Letter PDF export

Screenshots

Real implemented UI

Electrician Field Calculator light mode home screen
Light mode home screen
Electrician Field Calculator dark mode home screen
Dark mode home screen

Review Access

For field reviewers before launch

Who this is for

  • US electricians checking fixed example cases
  • Trade instructors reviewing wording and assumptions
  • Foremen or contractors validating on-site usefulness

What to send

  • Role and whether you are US-based
  • Which calculators you actually use on site
  • Whether you can review TestFlight screenshots or a build

FAQ

Short answers

Does the app work offline?

Yes. Launch calculations, history, saved jobs, and PDF export are designed for offline use after install.

Does it replace code review or inspection approval?

No. It is a field calculation aid and must be verified against local code, project specs, manufacturer instructions, and AHJ requirements.

How does Pro work?

Pro is a one-time in-app unlock. Restore Purchase is available inside the app.

Is the App Store link live yet?

Not yet. The final App Store listing URL will be added after approval.

What does the debug package include?

App version, selected calculator, data edition, result output, and calculation payload that you choose to share with support.