# MX3 Diagnostics vs hDrop App

The clearest difference is rating: MX3 Diagnostics at 5.0 against hDrop App's 3.7. MX3 Diagnostics also leads on in-app purchases (none vs 2) and iOS requirement (10.0 vs 15.6). hDrop App's advantage is update cadence (fortnightly vs monthly) and ratings volume (11 vs 2). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. hDrop App sells 2 in-app purchases, starting at $12.99 per month. MX3 Diagnostics asks for nothing beyond the download.

MX3 Diagnostics holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: hDrop App has 11 ratings behind it against 2, so its average is the more settled of the two.

MX3 Diagnostics ships an update monthly, hDrop App fortnightly. Both last shipped on October 2, 2026.

## The numbers

| Metric | MX3 Diagnostics | hDrop App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mx3-diagnostics/id1473092965/reviews)** | [3.7 (11 ratings)](https://appshunter.io/ios/app/hdrop-app/id1525159399/reviews) |
| Number of ratings | 2 | **11** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | Free |
| Size | 124 MB | 59 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MX3 DIAGNOSTICS](https://appshunter.io/developer/1309508113) | [hDrop Technologies Inc.](https://appshunter.io/developer/1525159401) |

## What reviewers say

### MX3 Diagnostics

[App page](https://appshunter.io/ios/app/mx3-diagnostics/id1473092965)

Measure and track hydration and sweat sodium levels quickly and conveniently. This system allows athletes, coaches, and managers to manage hydration data for individuals or teams anytime, anywhere. Personalize assessments and manage athlete accounts.

**Highlights:** Perform hydration measurements, Perform sweat sodium measurements, View and edit historical data, Personalize hydration assessment, Create team/athlete accounts, Update device firmware

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

**In-app purchases:** none


### hDrop App

[App page](https://appshunter.io/ios/app/hdrop-app/id1525159399)

This wearable sensor tracks fluid and sodium loss through sweat during exercise. It provides personalized hydration insights based on your unique physiology, helping endurance athletes optimize their performance. Analyze sweat loss, sodium intake, and rate trends to build a tailored hydration strategy.

**Highlights:** Wearable sweat sensor, Fluid and sodium loss tracking, Personalized hydration strategy, Sweat rate trend analysis, Workout data analysis, Comparison across conditions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| hDrop Lab | $12.99 | per month |
| hDrop Lab | $89.99 | per year |


## Frequently asked questions

### Is MX3 Diagnostics free?

MX3 Diagnostics is free to download, with no in-app purchases.

### Is hDrop App free?

hDrop App is free to download, with in-app purchases available.

### Which has better reviews, MX3 Diagnostics or hDrop App?

MX3 Diagnostics is rated higher. MX3 Diagnostics averages 5.0 out of 5 from 2 ratings, while hDrop App averages 3.7 from 11 ratings.

### Do MX3 Diagnostics or hDrop App have ads?

Neither MX3 Diagnostics nor hDrop App shows ads.

### Which is updated more often, MX3 Diagnostics or hDrop App?

MX3 Diagnostics ships an update monthly, and hDrop App fortnightly. Most recently, MX3 Diagnostics was updated on October 2, 2026 and hDrop App on October 2, 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.*