Comparison

PVT WorkFit vs Open Bridge

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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

About

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.

Highlights
  • 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
Read full description

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

PVT WorkFit4 screens
Open Bridge1 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
PVT WorkFit versus Open Bridge: the parameters behind the verdict, then further details
ParameterPVT WorkFitOpen Bridge
PriceFreeFree
Rating1.2 (32 ratings)5.0 (5 ratings) — better
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings32 — better5
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS10.0 — better16.4
Further details — not scored
Size81 MB41 MB
Age rating12+4+
DeveloperPulsar Informatics IncSage Bionetworks, a Not-For-Profit Research Organization

Customer experience

PVT WorkFit

All ratings32 ratings
Positive3.1%
Neutral0.0%
Negative96.9%
Written reviews15 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Open Bridge

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

PVT WorkFit

No in-app purchases

None

Open Bridge

No in-app purchases

Questions

Is PVT WorkFit free?
PVT WorkFit is free to download, with no in-app purchases.
Is Open Bridge free?
Open Bridge is free to download, with no in-app purchases.
Which has better reviews, PVT WorkFit or Open Bridge?
Open Bridge is rated higher. PVT WorkFit averages 1.2 out of 5 from 32 ratings, while Open Bridge averages 5.0 from 5 ratings.
Do PVT WorkFit or Open Bridge have ads?
Neither PVT WorkFit nor Open Bridge shows ads.
Which is updated more often, PVT WorkFit or Open Bridge?
PVT WorkFit ships an update every 2 months, and Open Bridge every 5 weeks. Most recently, PVT WorkFit was updated on October 14, 2026 and Open Bridge on October 6, 2026.

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