QiFood vs Aeternum AirOps
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QiFood
Explore the properties and effects of foods based on traditional Chinese nutrition. Access details for over 60 common aliments, with options to purchase information for hundreds more.
- Traditional Chinese nutrition information
- Details on over 60 foods
- In-app purchases for more aliments
- Properties and effects of foods
Read full descriptionHide full description
The QiFood App gives you details about the properties and effects of aliments according to the traditional chinese nutrition. It contains detailed information on more than 60 foods ranging from Almond to Yoghurt. Information for additional aliments (more than 170) can be bought using In App Purchase.
Aeternum AirOps
Read full descriptionHide 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
Verdict
The clearest difference is in-app purchases: Aeternum AirOps at none against QiFood's 9. QiFood's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, ads 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. QiFood sells 9 one-off in-app purchases. Aeternum AirOps asks for nothing beyond the download.
QiFood ships an update every 2 months, Aeternum AirOps every 3 months. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.
| Parameter | QiFood | Aeternum AirOps |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) — better | — |
| Positive reviews | 36.7% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 67 MB | 20 MB |
| Age rating | 12+ | 4+ |
| Developer | Dominik Wei-Fieg | Aeternum Innovations LTD |
In-app purchases
QiFood
- Grains$0.99
- Pulses, Nuts and Seeds$0.99
- Sweeteners, Dairy and Oils$0.99
Show 6 moreShow fewer
- Fish$0.99
- Vegetables$1.99
- Fruits$1.99
- Meat$1.99
- Spices$1.99
- Herbs$1.99
Aeternum AirOps
No in-app purchases








