Field Calculator & NEC Reference
What is VoltForge?
VoltForge is a field calculator and NEC 2023 reference app for electricians. It includes tools for Ohm's Law, voltage drop, wire ampacity, conduit fill, conduit bending, wire pull tension, job estimating, and more.
What's included in Pro?
A one-time $4.99 purchase unlocks the Conduit Fill Calculator, Conduit Bender, Wire Pull Tension Calculator, NEC Quick Reference, and Job Estimator with PDF export — plus all future Pro tools.
How do I restore a previous purchase?
Go to the Upgrade tab and tap "Restore Previous Purchase." Your Pro access will be restored if you previously purchased on the same Apple ID.
Does VoltForge work offline?
Yes — all tools and NEC references work completely offline. No internet connection required.
Which NEC edition does VoltForge use?
VoltForge is based on NEC 2023. Always verify with your local AHJ and any applicable local amendments.
How do I report an issue or suggest a feature?
Email [email protected] with a short description of the issue or suggestion. All feedback is welcome.