Aura CO2 vs airCoda
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aura CO2
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Knowing the CO2 concentration you’ll be aware of your home/office’s need for air renewal. This application will also let you know the temperature, humidity and pressure as well as outdoor air quality information, to easily act and improve your ventilation.
airCoda
Monitor your indoor air quality with a connected sensor. View real-time levels, track exposure hotspots throughout the day, and review your air quality history.
- Real-time air quality monitoring
- Day map of exposure hotspots
- Air quality history calendar
- Connects to airCoda Pocket Sensor
- Connects to Aranet4 CO2 sensor
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Connect the airCoda Pocket Sensor or Aranet4 CO2 sensor to constantly monitor your indoor air quality. This app displays your latest levels, a day map of when and where your exposures were highest, and a calendar of your air quality history.
Screenshots
Verdict
The clearest difference is update cadence: airCoda at every 10 days against Aura CO2'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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Aura CO2 ships an update every 3 months, airCoda every 10 days. The most recent releases landed on December 20, 2025 and June 11, 2026 respectively.
| Parameter | Aura CO2 | airCoda |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 59 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | ELICHENS | AIRCODA LLC |
In-app purchases
Aura CO2
No in-app purchases
airCoda
No in-app purchases
