Comparison

Flow vs Aeternum AirOps

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

Head to head
About

Flow

This app visualizes air quality data collected by a personal sensor. It helps users understand their exposure to pollutants like PM2.5, PM10, NO2, and VOCs, offering insights to find cleaner air routes and identify pollution hotspots.

Highlights
  • Real-time pollution tracking (PM2.5, PM10, NO2, VOCs)
  • Personal exposure reports
  • Air Quality Index (AQI) monitoring
  • Clean air route finding
  • Pollution hotspot identification
  • Daily and live data analysis
Features
Read full description

!! -- You must have Flow, the personal air pollution sensor from Plume Labs, to use this app. For more information, please visit flow.plumelabs.com. -- !! !! -- Looking for our free air quality forecasting app? Search for ‘Plume Air Report’ on the App Store or visit air.plumelabs.com. -- !! *Escape pollution and dodge the smog!* The Flow companion app from Plume Labs collects and analyses the data taken from your Flow’s PM2.5, PM10, NO2 and VOC sensors and gives you beautiful, easy-to-read reports, maps, and graphs. *Ever feel trapped by air pollution?* Air quality, AQI index, smog levels: with Flow, you can find the best clean air commute, hunt down fresh air playgrounds, eliminate chemical hotspots in your home, and that’s just the beginning. *Did you know?* Wind and weather, humidity and heat, atmospheric pressure, and many other factors create clean air pockets in urban environments. In fact, air pollution levels change up to 8X from street to street in the city, and even more from room to room indoors! Flow gives you the information you need to stay healthy at home or on the go. *Stop guessing and start sensing!* A new study from top researchers at King’s College in London shows that, with good data, you can reduce your exposure to air pollution by as much as 50% by making small changes to your routine. ***Key Features*** Track your personal pollution exposure with live data and daily reports: Flow measures real-time concentrations of PM2.5, PM10, NO2 and VOCs, as well as the AQI air quality level to give you everything you need to understand your exposure and build healthy routines. Avoid the most polluted places: Flow tracks air pollution variations around you in real time, so you can find clean air. Flow fits seamlessly into your daily life: Whether you're cycling, running, out in the park with the kids, or relaxing at home. ***Flow in the press*** “I hope many people living in polluted cities will end up using Flow.” —Techcrunch

About

Aeternum AirOps

Features
Read full description

AirOps makes the invisible visible: The AirOps app helps Aeternum customers make better decisions about their environment – how much or how little pollution exists, the health of the air they breathe, and more. What’s measured: The AirOps app connects in real time to Aeternum air quality sensors – sensors that collect and monitor hazardous solid and liquid particles in the air (PM1, 2.5, and 10), as well as harmful gases like nitrogen dioxide, carbon monoxide, and OX. Other key telemetry data provided includes temperature, humidity, air pressure, and sensor power status. How it’s measured: Aeternum sensors are low cost, solar or mains powered, and can be deployed across campuses, or throughout wider areas such cities, roads, etc. They are small and unobtrusive (17x17cm in size), nomadic, weatherproof, and easy to install, allowing the AirOps app to connect and monitor specific locations where it really matters. With the AirOps app and Aeternum sensor network -- you can take positive action now to improve your environment and make it less harmful.

Screenshots

Flow4 screens
Aeternum AirOps4 screens

Verdict

The call

The clearest difference is update cadence: Flow at monthly against Aeternum AirOps's every 3 months. On price, ads, in-app purchases and device support 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.

UpkeepUpdate frequency

Flow ships an update monthly, Aeternum AirOps every 3 months. The most recent releases landed on November 6, 2026 and October 27, 2026 respectively.

Scorecard1 real difference · 9 level
Flow versus Aeternum AirOps: the parameters behind the verdict, then further details
ParameterFlowAeternum AirOps
PriceFreeFree
Rating2.5 (27 ratings) — better—
Positive reviews19.0% of reviews—
Number of ratings27 — better—
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size69 MB20 MB
Age rating4+4+
DeveloperPlume LabsAeternum Innovations LTD

In-app purchases

None

Flow

No in-app purchases

None

Aeternum AirOps

No in-app purchases

Questions

Is Flow free?
Flow is free to download, with no in-app purchases.
Is Aeternum AirOps free?
Aeternum AirOps is free to download, with no in-app purchases.
Do Flow or Aeternum AirOps have ads?
Neither Flow nor Aeternum AirOps shows ads.
Which is updated more often, Flow or Aeternum AirOps?
Flow ships an update monthly, and Aeternum AirOps every 3 months. Most recently, Flow was updated on November 6, 2026 and Aeternum AirOps on October 27, 2026.

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