# Voltbook: Electric Circuit — NEC tables for electricians

> NEC tables for electricians (iPhone/iPad app by Andrii Bashta.)

- Source: https://appshunter.io/ios/app/voltbook-electric-circuit/id6788028180 (this page in markdown: same URL + `.md`)
- Developer: [Andrii Bashta](https://appshunter.io/developer/1547467775)
- Category: Utilities, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 21 MB
- Languages: American English
- Released: 2026-08-05
- Data updated: 2026-08-24
- User reviews in markdown: https://appshunter.io/ios/app/voltbook-electric-circuit/id6788028180/reviews.md

## What is Voltbook?

Voltbook is a voltage drop calculator and circuit calculator that puts trustworthy electrical answers in your pocket, right where the work happens. Every result shows the formula and the assumptions behind it, so you can check the math instead of guessing.

Alongside the calculators, Voltbook bundles an NEC code book of reference tables for electricians so a code-edition-aware reference is always one tap away, whether you're sizing conductors or checking box fill.

- Voltage drop, ampacity, conduit fill, box fill, and breaker sizing in seconds
- NEC reference tables that follow the code edition you pick, so answers match your inspector
- Share or export any result with the formula, inputs, and edition stamped on it
- Works fully offline, in the basement or on the roof

Voltbook is a calculation aid for licensed professionals. Always verify results against the current adopted code in your area.

Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vTDX9pxPOlUJl_skVUHPi99mAw0y2B2BYd_v1mJkoF3xW3rlOcW5KlYd4t93MMbbGhctSTnBTy7d_l6/pub
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Voltbook Lifetime | $9.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-05

No release notes.

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All apps by Andrii Bashta: https://appshunter.io/developer/1547467775

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*