Free

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  • Released
  • Updated
  • June 16, 2022
  • April 6, 2026
NLR OpenPATH screenshot #1 for iPhone
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NLR OpenPATH screenshot #9 for iPhone
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About

Track your travel modes like car, bus, or bike to measure energy use and carbon footprint. Understand your travel patterns, experiment with sustainable options, and contribute to community-level data for better urban planning.

Track various travel modes
Measure energy consumption
Calculate carbon footprint
Analyze travel patterns
Contribute to community data
Smart background data collection
Annotate travel diary
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What's New in NLR OpenPATH

2.1.3

April 6, 2026

- Add functionality to automatically update deployment config - Persist UI state in background for 5 minutes - Bug fixes

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User reviews

They don’t honor the promise

Gave my location data for 8 months. Emailed them to figure out any updates. Told me study closed. Do not share data with UW.

Epic fail

I am required to use this as part of an e-bike voucher program. The app fails in a fundamental way: it does not recognize multi-purpose trips. All trip types are radio buttons, not checkboxes—something that could be very easily fixed. If you, say, walk to the farmer’s market, the trip cannot be for exercise, shopping, and socializing all at the same time. This represents a complete misunderstanding of how people travel. This aside, the trip recognition function is really quite bad. I went to a festival recently and walked quite a bit. Each festival walking segment was classified as a separate trip, so I had to label like 10 different trips! The auto-classification is also garbage, labeling some walking trips as e-bike. Like, I couldn’t e-bike that slow if I tried! For an app developed by so-called experts, this all is quite befuddling, as they could design this in a way that helps them collect valuable/useful data, but they choose not to.
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Annoying notifications and draining battery

Doesn’t provide any good information. Just tracks your location. Delete delete delete.

Developer apps

FAQ

What is NLR OpenPATH?

NLR OpenPATH is a mobile application designed to track your travel modes, such as car, bus, or walking, and measure the associated energy use and carbon footprint. It aims to help individuals and communities understand and improve their travel habits for greater sustainability.

How does NLR OpenPATH track my travel?

The app functions as an automatically sensed travel diary, using background location and accelerometer data to construct your trip history. You can also manually annotate your diary with semantic labels as requested by study administrators.

Does NLR OpenPATH collect data immediately?

No, on first install, the app does not collect or transmit any data. Data collection begins only after you consent to join a specific study or program by clicking a link or scanning a QR code.

How does NLR OpenPATH affect battery life?

Continued use of GPS can decrease battery life. However, the app automatically turns off GPS when you are not moving to significantly reduce battery drain. It results in approximately 5% battery drain for up to 3 hours of travel per day.

Is NLR OpenPATH available on Android devices?

Based on the provided data, NLR OpenPATH is currently supported on iPhone and iPod devices. Information regarding Android compatibility is not available in this data.

What is the user rating for NLR OpenPATH?

NLR OpenPATH has a user rating of 2.5 stars based on 12 ratings. This suggests that while some users find value in the app, there may be areas for improvement based on user feedback.

How often is NLR OpenPATH updated?

The latest version of NLR OpenPATH is 2.0.8, which was last updated on March 7, 2026. This indicates a recent update, suggesting ongoing development and maintenance for the application.

Can I use NLR OpenPATH without joining a study?

Yes, if you are not part of a partner community or program but are interested in quantifying your individual carbon footprint, you can join the NLR-run open-access study. Your aggregated data may be used as a control for experiments.