# MX3 Diagnostics vs Droplet Tracker

The clearest difference is iOS requirement: MX3 Diagnostics at 10.0 against Droplet Tracker's 15.1. 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.

MX3 Diagnostics ships an update monthly, Droplet Tracker every 3 weeks. The most recent releases landed on August 20, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | MX3 Diagnostics | Droplet Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mx3-diagnostics/id1473092965/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 124 MB | 28 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [MX3 DIAGNOSTICS](https://appshunter.io/developer/1309508113) | [Spearmark Health](https://appshunter.io/developer/1607393288) |

## 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


### Droplet Tracker

[App page](https://appshunter.io/ios/app/droplet-tracker/id6478407967)

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

**In-app purchases:** none


## Frequently asked questions

### Is MX3 Diagnostics free?

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

### Is Droplet Tracker free?

Droplet Tracker is free to download, with no in-app purchases.

### Do MX3 Diagnostics or Droplet Tracker have ads?

Neither MX3 Diagnostics nor Droplet Tracker shows ads.

### Which is updated more often, MX3 Diagnostics or Droplet Tracker?

MX3 Diagnostics ships an update monthly, and Droplet Tracker every 3 weeks. Most recently, MX3 Diagnostics was updated on August 20, 2026 and Droplet Tracker on September 17, 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.*