# WireSizer vs SensorCheck™

The clearest difference is review sentiment: WireSizer at 84% against SensorCheck™'s 0%. WireSizer also leads on rating (4.5 vs 3.8) and ratings volume (226 vs 6). SensorCheck™'s advantage is price (Free vs $4.99) and iOS requirement (12.0 vs 26.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

SensorCheck™ is free to download; WireSizer costs $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 3.8. That said, the two scores are not equally well evidenced: WireSizer has 226 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 84% of WireSizer's written reviews are positive against 0% of SensorCheck™'s.

WireSizer ships an update every 5 months, SensorCheck™ every 3 months. Both last shipped on October 13, 2026.

## The numbers

| Metric | WireSizer | SensorCheck™ |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.5 (226 ratings)](https://appshunter.io/ios/app/wiresizer-dc-voltage-drop/id494748550/reviews)** | [3.8 (6 ratings)](https://appshunter.io/ios/app/sensorcheck/id1062316790/reviews) |
| Number of ratings | **226** | 6 |
| Positive reviews | **83.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 55 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Juggernaut Technology, Inc.](https://appshunter.io/developer/494748553) | [Airmar Technology Inc.](https://appshunter.io/developer/1062316789) |

## What reviewers say

### 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


### SensorCheck™

[App page](https://appshunter.io/ios/app/sensorcheck/id1062316790)

This app allows users to test marine transducers against factory specifications using a connected diagnostic tester. It provides detailed reports on transducer performance and automatically generates warranty information for eligible models.

**Highlights:** Compares transducer performance to factory specs, Tests traditional and CHIRP-ready transducers, Reads XducerID® features automatically, Generates automatic test reports, Enables warranty information submission, Supports Bluetooth LE connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WireSizer free?

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

### Is SensorCheck™ free?

SensorCheck™ is free to download, with no in-app purchases.

### Which has better reviews, WireSizer or SensorCheck™?

WireSizer is rated higher. WireSizer averages 4.5 out of 5 from 226 ratings, while SensorCheck™ averages 3.8 from 6 ratings.

### Do WireSizer or SensorCheck™ have ads?

Neither WireSizer nor SensorCheck™ shows ads.

### Which is updated more often, WireSizer or SensorCheck™?

WireSizer ships an update every 5 months, and SensorCheck™ every 3 months. Most recently, WireSizer was updated on October 13, 2026 and SensorCheck™ on October 13, 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.*