Report updated Apr 3, 2026
NASA PVT+
v1.5.7Researchers, scientists, and organizations in high-stakes, 24/7 operational fields (aviation, military, medical) requiring validated tools to study fatigue.
What Is NASA PVT+?
Launched Jul 7, 2011
Updated Apr 2026
What users think iIndependent intel reports to help builders create better apps or enhance existing ones. Still in beta, accuracy and relevancy get better every day. For informational purposes only.
What does it look like?
What are the key features?
A validated, research-grade reaction-time test sensitive to sleep loss and circadian misalignment.
Pre-set framework for tracking duty/off-duty cycles, fatigue countermeasures, and inflight rest.
Ability to conduct tests and collect data without a network connection.
Integrated self-reported sleepiness rating scale (1-9).
What do users think? iIndependent intel reports to help builders create better apps or enhance existing ones. Still in beta, accuracy and relevancy get better every day. For informational purposes only.
“Recent user voice shows a excited sentiment. Users appreciate educational content, but report mission tracker malfunctions and ui/ux and scaling issues.”
What Users Love
I have learnt many things in this app
NICE APP I CAN UNDERSTAND ABOUT SPACE
Pain Points
Artemis II mission tracker very glitchy, unresponsive
The Artemis II real-time tracker does not work
sometimes thinks my phone resolution is enormous
controls were not visible
High confidence · 51 reviews available
What are the pros and cons?
Pros
- Scientific validation of the PVT protocol
- NASA brand authority and trust
- Specialized aviation study frameworks
- Completely free for all users
Cons
- UI scaling issues on Android devices
- Buggy secondary features (Artemis tracker)
- Slow update and patch cycles
- Lack of integration with consumer wearables
What is the market outlook?
Growth Opportunities
- Expansion into trucking and emergency service sectors
- Integration with HealthKit/Google Fit APIs
- Developing a simplified consumer version for alertness tracking
- Capturing market share from high-cost commercial fatigue tools
Market Threats
- Commercial rivals with superior UX and dashboards
- Market shift toward passive fatigue monitoring (HRV)
- Technical instability driving researchers to paid platforms
- Device fragmentation affecting Android performance
Who competes with NASA PVT+?
The Nemesis
Why it's a threat
Contenders
Reading Journey: Book Tracker
Vinh Dinh
The primary commercial rival providing scientifically validated fatigue prediction and reaction-based alertness tracking for military and industrial sectors.
The primary commercial rival providing scientifically validated fatigue prediction and reaction-based alertness tracking for military and industrial sectors.
Uses circadian rhythm modeling and sleep debt tracking to predict peak alertness windows, targeting the same performance-conscious user base.
Balloon Protection Gameplay
Peers
Essential for the aviation and research ecosystem, focusing on circadian alignment and fatigue mitigation for long-haul travel.
Circadian Time™
Boycott Buddy - Shop Ethical
Zachary Jordan
A research-grade data collection platform used for longitudinal health studies and ecological momentary assessments.
A research-grade data collection platform used for longitudinal health studies and ecological momentary assessments.
New Kids on the Block
Uses HRV-based readiness scores as a modern, passive alternative to active reaction-time testing for assessing fatigue.
HRV-Based Wellness Insights
Though gamified, its focus on mental agility and reaction speed metrics attracts users interested in cognitive performance monitoring.
Coffee Break Workouts
What are the key takeaways?
NASA PVT+ is a exciting health & fitness app that is completely free. With a 4.3/5 rating from 118.1K reviews, it excites its users from users. Users particularly appreciate educational content, though mission tracker malfunctions remains a common concern.
Best for: Researchers, scientists, and organizations in high-stakes, 24/7 operational fields (aviation, military, medical) requiring validated tools to study fatigue.
How much does it cost?
Model: free
The app is a non-profit, government-funded tool; there is no monetization, which builds high trust but may result in slower technical support compared to commercial rivals.
iOS Version
1.5.7
Android Version
VARY
Release Date
Jul 7, 2011
iOS Price
Free
Android Price
Free
Developer
NASA