AlertMeter vs MX3 Diagnostics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AlertMeter
This app helps identify when fatigue, illness, medication, or distraction may impact cognitive function. It allows individuals to regularly test their alertness levels, providing companies with a daily overview of employees in critical roles. The app is designed to respect employee privacy while assessing fitness for work.
- Personalized alertness testing
- Company-wide daily overview
- Privacy-respecting employee monitoring
- Identifies impact of fatigue/illness
- Assesses fitness for safety-critical roles
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AlertMeter may help identify when fatigue, illness, medication, or distraction get in the way of a sharp state of mind. Developed for use by employees in a company setting, individuals test against their own personal alertness levels on a regular basis, providing companies with an all-company daily view of employees in safety-sensitive or quality-critical job roles. AlertMeter helps companies respect employee privacy as they check employees’ states of mind, a better measure of fit for work status than many current testing methods. For more information on how to use AlertMeter in your company, visit our website.
MX3 Diagnostics
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.
- Perform hydration measurements
- Perform sweat sodium measurements
- View and edit historical data
- Personalize hydration assessment
- Create team/athlete accounts
- Update device firmware
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Say goodbye to time-consuming and inconvenient testing with the MX3 Hydration Testing System. With the MX3 Hydration Testing System athletes, coaches, and team managers can finally measure, track, and manage hydration - anytime, anywhere. With the MX3 Diagnostics app you can: - Perform Hydration Measurements - Perform Sweat Sodium Measurements - View and edit historical measurement data - Personalize hydration assessment with baseline measurements - Create accounts for your team, organization or athletes - Update MX3 LAB firmware
Screenshots
Verdict
The clearest difference is rating: MX3 Diagnostics at 5.0 against AlertMeter's 4.4. MX3 Diagnostics also leads on iOS requirement (10.0 vs 16.4). AlertMeter's advantage is ratings volume (15 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MX3 Diagnostics holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: AlertMeter has 15 ratings behind it against 2, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 8, 2026 and August 20, 2026 respectively.
| Parameter | AlertMeter | MX3 Diagnostics |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (15 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 15 — better | 2 |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 10.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | Predictive Safety SRP, Inc. | MX3 DIAGNOSTICS |
Customer experience
AlertMeter
MX3 Diagnostics
In-app purchases
AlertMeter
No in-app purchases
MX3 Diagnostics
No in-app purchases
Questions
Is AlertMeter free?
Is MX3 Diagnostics free?
Which has better reviews, AlertMeter or MX3 Diagnostics?
Do AlertMeter or MX3 Diagnostics have ads?
Which is updated more often, AlertMeter or MX3 Diagnostics?
Other comparisons
