# MX3 Diagnostics vs NexSo

The clearest difference is iOS requirement: MX3 Diagnostics at 10.0 against NexSo's 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.

MX3 Diagnostics ships an update monthly, NexSo fortnightly. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | MX3 Diagnostics | NexSo |
| --- | --- | --- |
| 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 | **Fortnightly** |
| Monetization | Free | — |
| Size | 124 MB | 167 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MX3 DIAGNOSTICS](https://appshunter.io/developer/1309508113) | [Neuroexcellence](https://appshunter.io/developer/1546566023) |

## 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


### NexSo

[App page](https://appshunter.io/ios/app/nexso/id1546566021)

**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 NexSo free?

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

### Do MX3 Diagnostics or NexSo have ads?

Neither MX3 Diagnostics nor NexSo shows ads.

### Which is updated more often, MX3 Diagnostics or NexSo?

MX3 Diagnostics ships an update monthly, and NexSo fortnightly. Most recently, MX3 Diagnostics was updated on October 2, 2026 and NexSo on September 30, 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.*