Flow – Air Pollution Sensor is a companion app for Plume Labs hardware that visualizes hyper-local air quality data for urban commuters and residents.
The App DNA
What makes this app unique?
The app removes the guesswork from personal exposure by providing street-level pollution data that software-only alternatives cannot replicate without physical sensors.
For Urban residents and commuters who own Plume Labs hardware and seek to minimize personal exposure to air pollutants.
What does it look like?
Key features
Real-time measurement of PM2.5, PM10, NO2, and VOC concentrations via hardware sensor integration.
Visualizes air quality variations at street-level resolution to identify clean air routes.
Aggregates sensor data into daily summaries to track personal pollution exposure trends.
How much does it cost?
The app functions as a companion tool for discontinued hardware, with no active subscription or IAP model currently in place.
Velocity
Dormant developmentplatform expansionShow more...
Development has ceased, with no new feature builds or updates released in the last 522 days. The app remains in a zombie state, as the last update was limited to basic platform support for iOS 18. There is no evidence of ongoing maintenance or active development cycles.
Who built it?
Plume Labs
2 apps tracked · Health & Fitness
Plume Labs: Air Quality AppUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Flow – Air Pollution Sensor
How's the Health & Fitness market?
Flow – Air Pollution Sensor occupies a specialized niche in the Health & Fitness category, serving as a hardware-dependent utility rather than a mass-market forecasting app. With no updates in 17 months, the app's position is static, relying entirely on the existing hardware user base.
Read the market outlookThe rivals identified
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Key takeaways for Flow – Air Pollution Sensor
Where is it heading?
The air quality forecasting market is shifting toward software-only solutions that leverage crowdsourced data, leaving hardware-dependent apps like Flow – Air Pollution Sensor at a disadvantage. Without a pivot to a software-only model, the app will continue to decline as the underlying hardware reaches its end of life.
- The 17-month development gap indicates a maintenance-only state, which erodes user trust and leaves the app vulnerable to OS-level deprecation.
- Reliance on discontinued hardware limits the addressable market to a shrinking base, preventing the app from competing with modern, software-only forecasting tools.
The SWOT
- Proprietary sensor integration provides hyper-local data granularity
- Transition to software-only subscription model using crowdsourced data
Next best moves
Sunset the app because the hardware is discontinued and development has stalled for 17 months → reduce brand drag
The counter-intuitive read
The app's hardware-dependency is not a moat but a liability…
Read the full takeBottom line
The lack of active development for over a year indicates that Flow – Air Pollution Sensor has reached its end of life, and the PM should focus resources on the software-only forecasting alternative to capture a wider audience.
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Access the full report for freeSources
- [1] App Store, source
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