# E vs FieldVolt Electrical

The clearest difference is price: FieldVolt Electrical at Free against E's $14.99. FieldVolt Electrical also leads on iOS requirement (13.0 vs 26.0). E's advantage is in-app purchases (none vs 2) and update cadence (every 2 days vs every 2 months). On rating, ratings volume, ads and device support there is nothing between them.

FieldVolt Electrical is free to download; E costs $14.99 up front. FieldVolt Electrical sells 2 in-app purchases, starting at $4.99 per month. E asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for E against 5.0 for FieldVolt Electrical. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

E ships an update every 2 days, FieldVolt Electrical every 2 months. The most recent releases landed on October 27, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | E | FieldVolt Electrical |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/e-calc-usa/id6502258186/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/fieldvolt-electrical/id6761079218/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 months |
| Monetization | Paid | **Freemium** |
| Size | 52 MB | 66 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) | [MATTHEW DAVID KOVALIK](https://appshunter.io/developer/1887675427) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-calc-usa/id6502258186)

This app provides electricians and engineers with instant, code-compliant calculations for wire sizing, conduit capacities, fusing, and bonding based on the 2026 National Electrical Code. It offers advanced tools for motors, transformers, voltage drop, and box fill, along with on-site utilities like panel legends and torque settings.

**Highlights:** NEC 2026 compliant calculations, Wire sizing and ampacity, Conduit fill and expansion, Motor and transformer calculations, Voltage drop and box fill, Panel legends and torque settings, Integrated unit converter and Ohm's Law

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### FieldVolt Electrical

[App page](https://appshunter.io/ios/app/fieldvolt-electrical/id6761079218)

This app assists electricians with complex calculations for pipe bending, conduit fill, ampacity, voltage drop, and box fill. It also offers a professional subscription for expert electrical advice and troubleshooting.

**Highlights:** Pipe bending calculations (offsets, saddles), Conduit fill calculations (NEC Table 1), Ampacity and wire sizing, Voltage drop calculations, Box fill calculations (NEC 314.16), Expert electrical advice subscription

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FieldVolt Pro | $4.99 | per month |
| FieldVolt Pro | $49.99 | per year |


## Frequently asked questions

### Is E free?

E costs $14.99, with no in-app purchases.

### Is FieldVolt Electrical free?

FieldVolt Electrical is free to download, with in-app purchases available.

### Which has better reviews, E or FieldVolt Electrical?

E and FieldVolt Electrical are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do E or FieldVolt Electrical have ads?

Neither E nor FieldVolt Electrical shows ads.

### Which is updated more often, E or FieldVolt Electrical?

E ships an update every 2 days, and FieldVolt Electrical every 2 months. Most recently, E was updated on October 27, 2026 and FieldVolt Electrical on October 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*