Comparison

COMP Odour Survey vs Smell Annotator

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

Head to head
About

COMP Odour Survey

This app allows the public to report odour events in the Wood Buffalo region. The collected anonymous data helps researchers understand the relationship between odours and ambient air quality, complementing official monitoring station data.

Highlights
  • Anonymous odour reporting
  • Contributes to air quality research
  • Data complements monitoring stations
  • Supports Wood Buffalo Environmental Association
  • Community participation in environmental monitoring
Features
Read full description

The information collected is anonymous and will be used for research purposes only. The Wood Buffalo Environmental Association (WBEA) monitors air quality in the Regional Municipality of Wood Buffalo (RMWB). The WBEA is asking the public to participate in its Community Odour Monitoring Program (COMP), which seeks to gain a better understanding on how odour events in the region relate to our ambient air quality. The information you provide will populate a database that will be compared to the data collected at our ambient air monitoring stations throughout the RMWB. If you would like to make a complaint to the Alberta Government about an odour you are experiencing, please call their 24-hour Energy & Environmental Response Line at 1-800-222-6514. Stay informed about COMP and other WBEA work at www.wbea.org

About

Smell Annotator

This application enables machines to digitally sense and analyze smells using nanomaterial-based technology. It allows users to view, annotate, and recognize smell measurements in real-time, functioning as part of a developer kit.

Highlights
  • Smell recognition
  • Smell digitalization and annotation
  • Saving and loading measurements
  • Real-time measurement visualization
  • Offline data collection
  • Graph synchronization
Features
Read full description

Today, machines can see, hear, feel, and even learn. But smell? Not really! Our nanomaterial-based technology enables machines to use an electronic sense of smell. Smell Annotator app is an AI-based software program which is used to view, annotate and analyze smell measurements taken with the Smell Inspector and to recognize annotated smells in real time. The Smell Annotator app is a part of the Smell Inspector Developer Kit. The Smell Annotator gives you access to the smell sensors of your Smell Inspector developer kit. APP FEATURES * Smell recognition [NEW] * Smell digitalization and annotation * Saving measurements and loading saved data * Visualization of real-time and saved measurements with temperature and humidity data * Collect measurement data with or without internet access * Sync graphs for better clarity of data SENSORS * 4 Smell iX16 detector chips * Temperature sensor * Humidity sensor SMELL INSPECTOR The Smell Inspector is a ready-to-use device for anyone and a developer kit. It is suitable for testing and exploring different smell-related applications in the fields of product quality, safety & security, life & care, air quality, and many others. It has four Smell iX 16 detector chips inside, can be connected to a PC, tablet, or smartphone, and can be operated with Smell Annotator software. USER MANUAL For more information about how to use the App and the Smell Inspector device, go to: http://smart-nanotubes.com/downloads/ ABOUT US Along with a great community of industry experts and researchers, SmartNanotubes Technologies shares the vision of digital smell recognition. Our goal is to enable digital smell recognition in a fast and easy way and help our customers to develop product solutions for their own smell and gas detection applications. Visit us at: http://smart-nanotubes.com

Screenshots

COMP Odour Survey4 screens
Smell Annotator3 screens

Verdict

The call

The clearest difference is update cadence: Smell Annotator at monthly against COMP Odour Survey's every 6 months. On price, ads, in-app purchases and monetization model 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

COMP Odour Survey ships an update every 6 months, Smell Annotator monthly. The most recent releases landed on October 22, 2026 and October 18, 2026 respectively.

Scorecard1 real difference · 9 level
COMP Odour Survey versus Smell Annotator: the parameters behind the verdict, then further details
ParameterCOMP Odour SurveySmell Annotator
PriceFreeFree
Rating—1.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 6 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size45 MB53 MB
Age rating4+4+
DeveloperWood Buffalo Environmental AssociationSmartNanotubes Technologies

Customer experience

COMP Odour Survey

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Smell Annotator

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

COMP Odour Survey

No in-app purchases

None

Smell Annotator

No in-app purchases

Questions

Is COMP Odour Survey free?
COMP Odour Survey is free to download, with no in-app purchases.
Is Smell Annotator free?
Smell Annotator is free to download, with no in-app purchases.
Do COMP Odour Survey or Smell Annotator have ads?
Neither COMP Odour Survey nor Smell Annotator shows ads.
Which is updated more often, COMP Odour Survey or Smell Annotator?
COMP Odour Survey ships an update every 6 months, and Smell Annotator monthly. Most recently, COMP Odour Survey was updated on October 22, 2026 and Smell Annotator on October 18, 2026.

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