# HeavyCalc Pro vs WireSizer

The clearest difference is review sentiment: WireSizer at 82% against HeavyCalc Pro's 33%. WireSizer also leads on price ($4.99 vs $39.99) and rating (4.5 vs 3.0). HeavyCalc Pro's advantage is iOS requirement (15.0 vs 26.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

HeavyCalc Pro costs $39.99 and WireSizer $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

WireSizer holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: WireSizer has 227 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 33% of HeavyCalc Pro's written reviews are positive against 82% of WireSizer's.

HeavyCalc Pro ships an update every 18 months, WireSizer every 5 months. The most recent releases landed on October 21, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | HeavyCalc Pro | WireSizer |
| --- | --- | --- |
| Price | $39.99 | **$4.99** |
| Rating | [3.0 (6 ratings)](https://appshunter.io/ios/app/heavycalc-pro/id390275254/reviews) | **[4.5 (227 ratings)](https://appshunter.io/ios/app/wiresizer-dc-voltage-drop/id494748550/reviews)** |
| Number of ratings | 6 | **227** |
| Positive reviews | 33.3% of reviews | **81.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 5 months** |
| Monetization | Paid | Paid |
| Size | 62 MB | 2 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Juggernaut Technology, Inc.](https://appshunter.io/developer/494748553) |

## What reviewers say

### HeavyCalc Pro

[App page](https://appshunter.io/ios/app/heavycalc-pro/id390275254)

This professional construction calculator helps engineers and excavators perform complex calculations for yards, feet-inch-fractions, and metric units. It streamlines estimating time, improves design accuracy, and reduces material and labor expenses with fast, precise solutions for areas, volumes, and loads.

**Highlights:** Dimensional math and conversions (yards, feet-inch-fractions, metric), Calculate areas, volumes, and weight per volume, Fast square-ups and right angles, Cut/fill, shrink, and swell calculations, Cost per unit and pricing solver, Built-in help with key definitions and examples

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

**In-app purchases:** none


### WireSizer

[App page](https://appshunter.io/ios/app/wiresizer-dc-voltage-drop/id494748550)

This app quickly calculates the correct DC wire gauge needed for any circuit. Simply input voltage, current, and length to determine the optimal wire size, considering voltage drop and ampacity limits. It's suitable for various DC systems up to 60 VDC.

**Highlights:** Instant DC wire size calculation, Voltage drop percentage selection, Ampacity limit checks, Supports various wire types and gauges, Adjustable for installation conditions, Materials list for selections

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Quick calculations
- 💡 ABYC-based calculations
- 👍 Interactive interface
- 👍 Essential tool for electrical projects

**What reviewers complain about**

- ⚠️ Limited to 50VDC
- ⚠️ No AC calculations
- ⚠️ Lacks advanced features
- ⚠️ Some users find it useless
- ⚠️ Voltage drop percentage requires conversion

**Requested features**

- AC calculation for higher voltages
- Support for higher DC voltages (e.g., 150VDC)
- Support for AC voltages (e.g., 240VAC)
- Include actual voltage drop on final screen
- More variables like wire ampacity and cables in a bundle


## Frequently asked questions

### Is HeavyCalc Pro free?

HeavyCalc Pro costs $39.99, with no in-app purchases.

### Is WireSizer free?

WireSizer costs $4.99, with no in-app purchases.

### Which has better reviews, HeavyCalc Pro or WireSizer?

WireSizer is rated higher. HeavyCalc Pro averages 3.0 out of 5 from 6 ratings, while WireSizer averages 4.5 from 227 ratings.

### Do HeavyCalc Pro or WireSizer have ads?

Neither HeavyCalc Pro nor WireSizer shows ads.

### Which is updated more often, HeavyCalc Pro or WireSizer?

HeavyCalc Pro ships an update every 18 months, and WireSizer every 5 months. Most recently, HeavyCalc Pro was updated on October 21, 2026 and WireSizer on November 1, 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.*