# SensorCheck™ vs VMH Flex Marine

The clearest difference is rating: SensorCheck™ at 3.8 against VMH Flex Marine's 1.0. SensorCheck™ also leads on ratings volume (6 vs 1) and iOS requirement (12.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SensorCheck™ holds the better App Store score, 3.8 against 1.0. That said, the two scores are not equally well evidenced: SensorCheck™ has 6 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SensorCheck™ | VMH Flex Marine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/sensorcheck/id1062316790/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/vmh-flex-marine/id6747126000/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 55 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Airmar Technology Inc.](https://appshunter.io/developer/1062316789) | [Veratron AG](https://appshunter.io/developer/1765346453) |

## What reviewers say

### 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


### VMH Flex Marine

[App page](https://appshunter.io/ios/app/vmh-flex-marine/id6747126000)

**In-app purchases:** none


## Frequently asked questions

### Is SensorCheck™ free?

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

### Is VMH Flex Marine free?

VMH Flex Marine is free to download, with no in-app purchases.

### Which has better reviews, SensorCheck™ or VMH Flex Marine?

SensorCheck™ is rated higher. SensorCheck™ averages 3.8 out of 5 from 6 ratings, while VMH Flex Marine averages 1.0 from 1 ratings.

### Do SensorCheck™ or VMH Flex Marine have ads?

Neither SensorCheck™ nor VMH Flex Marine shows ads.

### Which is updated more often, SensorCheck™ or VMH Flex Marine?

SensorCheck™ ships an update every 3 months, and VMH Flex Marine every 3 months. Most recently, SensorCheck™ was updated on October 13, 2026 and VMH Flex Marine on October 24, 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.*