PVT WorkFit vs AYOlight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PVT WorkFit
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.
- 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
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A proven tool for assessing fitness for work, PVT WorkFit provides an objective alertness standard to promote safety and reduce risk in your workforce. ==== About the PVT ==== PVT WorkFit delivers the Psychomotor Vigilance Test (PVT), the gold standard assay of neurobehavioral alertness. The PVT is scientifically validated and widely recognized. Over 120 peer-reviewed published studies and numerous government reports have demonstrated the sensitivity of the PVT to fatigue, medications and workload. The PVT is a robust assessment, unaffected by aptitude, education level, or practice effects. ==== Features ==== * Gold-standard Psychomotor Vigilance Test (PVT) administration * Robotically calibrated to control for hardware latency * Immediately view performance scores for real-time decision making * Synchronize data from distributed sites * Role-based access control for large teams * Multi-lingual support
AYOlight
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Meet AYO and get in charge of your energy! The first comprehensive solution to actively beat your jet lag, improve your sleep, and boost your energy levels! AYO is an advanced wearable technology that optimizes your hormone levels according to your lifestyle and preferences using a specialized lighting solution. Imagine having your own portable sunshine that that helps you sleep better, feel better and be better! BEAT JET LAG Jet lag is a physiological condition that results from rapid changes in our body’s natural sleep-wake cycle. If we follow the needs and desires of our body, we would end up sleeping throughout the day and staying awake during the night. In the short-run, these symptoms can lead to low productivity, headache and loss of appetite, and in the long-run even to memory & learning problems. IMPROVE YOUR SLEEP Due to our contemporary lifestyle and 24/7 global working society, we are usually not spending enough time outdoors enjoying the light exposure which is needed for our hormone levels’ regulation. When lifestyle and work hours are not aligned with a person’s body clock, extreme situation being shift workers, this can lead to sleep problems and disorders. In the short run, sleep disorders can be the main reason for tiredness, fatigue and depression as well as they can increase the risk of getting diabetes, obesity, or heart diseases in the long run. BECOME HAPPIER & MORE ENERGETIC The lack of sun during the short and gloomy winter days in the Northern hemisphere leave many people with lack of energy which can lead to low moods, winter blues and other winter depressions. Exposing yourself to light is a proven technology that can increase energy levels and enhance mood as well as bring the so much needed power boost to tackle the afternoon energy dips.
Screenshots
Verdict
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.
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.
PVT WorkFit ships an update every 2 months, AYOlight monthly. The most recent releases landed on June 1, 2026 and May 17, 2026 respectively.
| Parameter | PVT WorkFit | AYOlight |
|---|---|---|
| Price | Free | Free |
| Rating | 1.2 (32 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 32 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 81 MB | 21 MB |
| Age rating | 12+ | 12+ |
| Developer | Pulsar Informatics | Novalogy Inc. |
In-app purchases
PVT WorkFit
No in-app purchases
AYOlight
No in-app purchases








