# Airthings vs Sup

The clearest difference is rating: Airthings at 4.4 against Sup's 2.4. Airthings also leads on ratings volume (3K vs 179) and update cadence (every 2 weeks vs monthly). Sup's advantage is iOS requirement (11.0 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 2.4. That said, the two scores are not equally well evidenced: Airthings has 3K ratings behind it against 179, so its average is the more settled of the two. Written reviews point the same way: 33% of Airthings's written reviews are positive against 30% of Sup's.

Airthings ships an update every 2 weeks, Sup monthly. Both last shipped on November 7, 2026.

## The numbers

| Metric | Airthings | Sup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (3K ratings)](https://appshunter.io/ios/app/airthings/id1560329275/reviews)** | [2.4 (179 ratings)](https://appshunter.io/ios/app/sup-anesok/id1633412853/reviews) |
| Number of ratings | **3K** | 179 |
| Positive reviews | **33.2% of reviews** | 29.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 105 MB | 44 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Airthings ASA](https://appshunter.io/developer/1101077902) | [亮 连](https://appshunter.io/developer/1687605002) |

## What reviewers say

### 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


### Sup

[App page](https://appshunter.io/ios/app/sup-anesok/id1633412853)

Manage your connected hardware device directly from your phone. View photos and videos stored on the device and easily copy files between your phone and the hardware.

**Highlights:** Hardware device management, Connect via USB, View photos and videos, Copy files to device, Copy files from device

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Plug and play
- 👍 Easy to use
- 🔍 Works as expected
- 💡 Useful for specific tasks

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔌 Compatibility problems with newer devices
- 🔍 Poor image/video quality
- 🔋 Lighting issues
- 🔒 Privacy concerns

**Reported bugs**

- App crashes
- Camera not recognized
- Sudden loss of functionality

**Requested features**

- Ability to rotate image/video
- Option to switch between dual cameras
- Improved brightness control
- Better app instructions


## Frequently asked questions

### Is Airthings free?

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

### Is Sup free?

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

### Which has better reviews, Airthings or Sup?

Airthings is rated higher. Airthings averages 4.4 out of 5 from 3K ratings, while Sup averages 2.4 from 179 ratings.

### Do Airthings or Sup have ads?

Neither Airthings nor Sup shows ads.

### Which is updated more often, Airthings or Sup?

Airthings ships an update every 2 weeks, and Sup monthly. Most recently, Airthings was updated on November 7, 2026 and Sup on November 7, 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.*