# PVT WorkFit vs AYOlight

The clearest difference is iOS requirement: PVT WorkFit at 10.0 against AYOlight's 13.0. 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.

PVT WorkFit ships an update every 2 months, AYOlight monthly. The most recent releases landed on June 1, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | PVT WorkFit | AYOlight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.2 (32 ratings)](https://appshunter.io/ios/app/pvt-workfit/id1238827231/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 81 MB | 21 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Pulsar Informatics](https://appshunter.io/developer/1154761432) | [Novalogy Inc.](https://appshunter.io/developer/1100880343) |

## What reviewers say

### 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


### AYOlight

[App page](https://appshunter.io/ios/app/ayolight/id1444418864)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PVT WorkFit free?

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

### Is AYOlight free?

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

### Do PVT WorkFit or AYOlight have ads?

Neither PVT WorkFit nor AYOlight shows ads.

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

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