# ElectriCalc Pro vs Box Fill 2

The clearest difference is price: ElectriCalc Pro at Free against Box Fill 2's $3.99. ElectriCalc Pro also leads on review sentiment (78% vs 33%) and rating (4.9 vs 3.3). Box Fill 2's advantage is in-app purchases (none vs 2) and update cadence (every 5 weeks vs every 10 months). On ads and device support there is nothing between them.

ElectriCalc Pro is free to download; Box Fill 2 costs $3.99 up front. ElectriCalc Pro sells 2 in-app purchases, starting at $4.99 per month. Box Fill 2 asks for nothing beyond the download.

ElectriCalc Pro holds the better App Store score, 4.9 against 3.3. That said, the two scores are not equally well evidenced: ElectriCalc Pro has 354 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 78% of ElectriCalc Pro's written reviews are positive against 33% of Box Fill 2's.

ElectriCalc Pro ships an update every 10 months, Box Fill 2 every 5 weeks. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ElectriCalc Pro | Box Fill 2 |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.9 (354 ratings)](https://appshunter.io/ios/app/electricalc-pro/id569677304/reviews)** | [3.3 (3 ratings)](https://appshunter.io/ios/app/box-fill-2/id1589765411/reviews) |
| Number of ratings | **354** | 3 |
| Positive reviews | **78.1% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 5 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 29 MB | 19 MB |
| Requires iOS | **14.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) |

## What reviewers say

### ElectriCalc Pro

[App page](https://appshunter.io/ios/app/electricalc-pro/id569677304)

This app provides electricians and electrical professionals with a powerful tool for performing complex calculations based on the latest National Electrical Code (NEC). It offers solutions for wire sizing, voltage drop, conduit sizing, and motor calculations, saving time and ensuring code compliance.

**Highlights:** NEC compliant calculations, Wire and conduit sizing, Voltage drop calculations, Motor full-load amps, Ohm's Law solver, Built-in help and tutorials

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Full Access | $4.99 | per month |
| 1 Year Full Access | $39.99 | per year |


### Box Fill 2

[App page](https://appshunter.io/ios/app/box-fill-2/id1589765411)

This utility app helps electricians and contractors perform precise electrical box fill calculations according to the latest codes. It also includes a comprehensive construction calculator for dimensional math, area, volume, and right-angle solutions.

**Highlights:** Electrical box fill calculations, Construction calculator, Dimensional math (feet-inches-fractions, metric), Area and volume calculations, Right-angle solutions, Shareable calculation reports, iCloud sync across devices

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

**In-app purchases:** none


## Frequently asked questions

### Is ElectriCalc Pro free?

ElectriCalc Pro is free to download, with in-app purchases available.

### Is Box Fill 2 free?

Box Fill 2 costs $3.99, with no in-app purchases.

### Which has better reviews, ElectriCalc Pro or Box Fill 2?

ElectriCalc Pro is rated higher. ElectriCalc Pro averages 4.9 out of 5 from 354 ratings, while Box Fill 2 averages 3.3 from 3 ratings.

### Do ElectriCalc Pro or Box Fill 2 have ads?

Neither ElectriCalc Pro nor Box Fill 2 shows ads.

### Which is updated more often, ElectriCalc Pro or Box Fill 2?

ElectriCalc Pro ships an update every 10 months, and Box Fill 2 every 5 weeks. Most recently, ElectriCalc Pro was updated on October 11, 2026 and Box Fill 2 on October 5, 2026.

---

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