# Calgary 311 vs Airthings

The clearest difference is rating: Airthings at 4.4 against Calgary 311's 3.5. Airthings also leads on ratings volume (3K vs 2) and update cadence (every 2 weeks vs every 2 months). Calgary 311's advantage is iOS requirement (13.4 vs 17.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Airthings holds the better App Store score, 4.4 against 3.5. That said, the two scores are not equally well evidenced: Airthings has 3K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 26% of Calgary 311's written reviews are positive against 33% of Airthings's.

Calgary 311 ships an update every 2 months, Airthings every 2 weeks. The most recent releases landed on November 10, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Calgary 311 | Airthings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/calgary-311/id586152390/reviews) | **[4.4 (3K ratings)](https://appshunter.io/ios/app/airthings/id1560329275/reviews)** |
| Number of ratings | 2 | **3K** |
| Positive reviews | 26.4% of reviews | **33.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 25 MB | 105 MB |
| Requires iOS | **13.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [The City of Calgary](https://appshunter.io/developer/364373992) | [Airthings ASA](https://appshunter.io/developer/1101077902) |

## What reviewers say

### Calgary 311

[App page](https://appshunter.io/ios/app/calgary-311/id586152390)

Easily report issues and request City services directly from your smartphone. Submit concerns with photos and location, track request status in real-time, and stay updated with City news.

**Highlights:** Effortless reporting with photos and location, Real-time request status updates, User-friendly interface, Multiple photo uploads, City of Calgary news feed

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great for reporting graffiti
- 👍 Efficient for dead animal removal
- 👍 Helpful for reporting potholes
- 👍 Useful for reporting traffic lights
- 👍 Good for reporting path repair

**What reviewers complain about**

- 😞 City never actions requests
- 😞 Impossible to accomplish anything
- 😞 Too complicated to use
- 😞 Needs to be simplified
- 😞 App is showing blank

**Reported bugs**

- Report Submission Failed error
- Black screen when trying to take photos
- App is showing blank in calendar
- App quit working
- Won't send any reports

**Requested features**

- Add a search bar to services list
- Make app simplified and usable
- Add 'other' drop down option for reporting
- Make all reporting options available online/app
- Add a search function for requests


### Airthings

[App page](https://appshunter.io/ios/app/airthings/id1560329275)

Monitor and improve your home's air quality with smart devices and a connected app. Get insights into air quality trends, receive alerts for poor conditions, and control air purifiers remotely for a healthier living environment.

**Highlights:** Quick device setup, AirGlimpse™ color indicators, Detailed air quality graphs, Customizable device focuses, Remote air purifier control, 5-day pollen forecast, Air quality alerts and tips

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple to understand and setup
- 🚀 Intuitive and easy to use app
- 🚀 Efficient and fast
- 🚀 Provides great information on air quality
- 🚀 Accurate and reliable sensor readings

**What reviewers complain about**

- 🐛 App has connectivity issues, often fails to sync
- 🐛 App is buggy and has many errors
- 🐛 Inaccurate or inconsistent sensor readings
- 🐛 Difficult to set up and connect devices
- 🐛 Lack of customization options for thresholds and notifications

**Reported bugs**

- App crashes frequently
- Unable to add new devices or accounts
- Incorrect color coding and data display
- Delayed or missing sensor data updates
- Bluetooth connectivity issues

**Requested features**

- Add HomeKit integration
- Allow custom thresholds and notifications
- Improve data visualization and historical trending
- Add more detailed information on air quality issues and remedies
- Provide an iPad-optimized version of the app


## Frequently asked questions

### Is Calgary 311 free?

Calgary 311 is free to download, with no in-app purchases.

### Is Airthings free?

Airthings is free to download, with no in-app purchases.

### Which has better reviews, Calgary 311 or Airthings?

Airthings is rated higher. Calgary 311 averages 3.5 out of 5 from 2 ratings, while Airthings averages 4.4 from 3K ratings.

### Do Calgary 311 or Airthings have ads?

Neither Calgary 311 nor Airthings shows ads.

### Which is updated more often, Calgary 311 or Airthings?

Calgary 311 ships an update every 2 months, and Airthings every 2 weeks. Most recently, Calgary 311 was updated on November 10, 2026 and Airthings on November 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*