# AlertMeter vs PVT WorkFit

The clearest difference is review sentiment: AlertMeter at 50% against PVT WorkFit's 0%. AlertMeter also leads on rating (4.4 vs 1.2). PVT WorkFit's advantage is iOS requirement (10.0 vs 16.4). On price, ratings volume, update cadence and ads there is nothing between them.

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

AlertMeter holds the better App Store score, 4.4 against 1.2. Both are backed by a comparable volume of ratings — 15 and 32 respectively. Written reviews point the same way: 50% of AlertMeter's written reviews are positive against 0% of PVT WorkFit's.

AlertMeter ships an update monthly, PVT WorkFit every 2 months. The most recent releases landed on September 8, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | AlertMeter | PVT WorkFit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (15 ratings)](https://appshunter.io/ios/app/alertmeter/id1179939295/reviews)** | [1.2 (32 ratings)](https://appshunter.io/ios/app/pvt-workfit/id1238827231/reviews) |
| Number of ratings | 15 | **32** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 25 MB | 81 MB |
| Requires iOS | 16.4 | **10.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Predictive Safety SRP, Inc.](https://appshunter.io/developer/1179939294) | [Pulsar Informatics](https://appshunter.io/developer/1154761432) |

## What reviewers say

### AlertMeter

[App page](https://appshunter.io/ios/app/alertmeter/id1179939295)

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.

**Highlights:** Personalized alertness testing, Company-wide daily overview, Privacy-respecting employee monitoring, Identifies impact of fatigue/illness, Assesses fitness for safety-critical roles

**Features:** Vision Pro support

**In-app purchases:** none


### PVT WorkFit

[App page](https://appshunter.io/ios/app/pvt-workfit/id1238827231)

This app administers the Psychomotor Vigilance Test (PVT) to objectively measure alertness and reduce workplace risks. It is scientifically validated and unaffected by individual differences, providing immediate performance scores for real-time decision-making.

**Highlights:** Gold-standard Psychomotor Vigilance Test (PVT), Robotically calibrated for hardware latency, Immediate performance score viewing, Synchronize data from distributed sites, Role-based access control, Multi-lingual support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AlertMeter free?

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

### Is PVT WorkFit free?

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

### Which has better reviews, AlertMeter or PVT WorkFit?

AlertMeter is rated higher. AlertMeter averages 4.4 out of 5 from 15 ratings, while PVT WorkFit averages 1.2 from 32 ratings.

### Do AlertMeter or PVT WorkFit have ads?

Neither AlertMeter nor PVT WorkFit shows ads.

### Which is updated more often, AlertMeter or PVT WorkFit?

AlertMeter ships an update monthly, and PVT WorkFit every 2 months. Most recently, AlertMeter was updated on September 8, 2026 and PVT WorkFit on June 1, 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.*