# TopSpin360 vs MX3 Diagnostics

The clearest difference is update cadence: MX3 Diagnostics at monthly against TopSpin360's every 11 months. MX3 Diagnostics also leads on iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

TopSpin360 ships an update every 11 months, MX3 Diagnostics monthly. The most recent releases landed on September 5, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | TopSpin360 | MX3 Diagnostics |
| --- | --- | --- |
| 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 | Every 11 months | **Monthly** |
| Monetization | — | Free |
| Size | 86 MB | 124 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TopSpin Technologies](https://appshunter.io/developer/1281507773) | [MX3 DIAGNOSTICS](https://appshunter.io/developer/1309508113) |

## What reviewers say

### TopSpin360

[App page](https://appshunter.io/ios/app/topspin360/id1281507774)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is TopSpin360 free?

TopSpin360 is free to download, with no in-app purchases.

### Is MX3 Diagnostics free?

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

### Do TopSpin360 or MX3 Diagnostics have ads?

Neither TopSpin360 nor MX3 Diagnostics shows ads.

### Which is updated more often, TopSpin360 or MX3 Diagnostics?

TopSpin360 ships an update every 11 months, and MX3 Diagnostics monthly. Most recently, TopSpin360 was updated on September 5, 2026 and MX3 Diagnostics on September 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*