PVT WorkFit vs Open Bridge
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
Open Bridge
Contribute your data to scientific research studies focused on cognition. Complete scheduled activities, similar to puzzles or memory tests, directly on your phone. Your identity is protected as the app collects data solely for research purposes.
- Contribute data for research studies
- Complete scheduled cognitive activities
- Activities resemble puzzles and memory tests
- Data used solely for research
- Protects user identity
- Developed by non-profit research organizations
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Open Bridge is for adults ages 18+ to collect data for research studies. The Open Bridge app lets you contribute data for research. It is used by many research organizations who study cognition. If you choose to join a Open Bridge study, you will use the free app to complete activities on your phone on a pre-set schedule. The activities may resemble puzzles, or they may test your memory. The data collected from the activities help researchers learn more about cognition. Your data will only be used for research. We will not collect your name through the app. This helps protect your identity. Every research study is different, but most studies will take about 30-40 minutes each week and will last for different lengths of time. If you are already part of a Mobile Toolbox study, you can contact your Study Coordinator if you have questions about the study you have joined. Sage Bionetworks, a non-profit research organization in the USA, developed the Open Bridge app. Washington University and Sage Bionetworks developed the activities on the app. Open Bridge supports research studies. It does not provide medical advice, diagnosis, or treatment.
Screenshots
Verdict
The clearest difference is rating: Open Bridge at 5.0 against PVT WorkFit's 1.2. PVT WorkFit's advantage is ratings volume (32 vs 5) and device support (3 vs 1). On price, review sentiment, update cadence and ads 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.
Open Bridge holds the better App Store score, 5.0 against 1.2. That said, the two scores are not equally well evidenced: PVT WorkFit has 32 ratings behind it against 5, so its average is the more settled of the two. Written reviews split almost evenly too, at 0% and 0% positive.
PVT WorkFit ships an update every 2 months, Open Bridge every 5 weeks. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.
| Parameter | PVT WorkFit | Open Bridge |
|---|---|---|
| Price | Free | Free |
| Rating | 1.2 (32 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 32 — better | 5 |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 10.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 81 MB | 41 MB |
| Age rating | 12+ | 4+ |
| Developer | Pulsar Informatics Inc | Sage Bionetworks, a Not-For-Profit Research Organization |
Customer experience
PVT WorkFit
Open Bridge
In-app purchases
PVT WorkFit
No in-app purchases
Open Bridge
No in-app purchases






