Comparison

QiFood vs Aeternum AirOps

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

Head to head
About

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.

Highlights
  • Traditional Chinese nutrition information
  • Details on over 60 foods
  • In-app purchases for more aliments
  • Properties and effects of foods
Features
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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.

About

Aeternum AirOps

Features
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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

QiFood4 screens
Aeternum AirOps4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. QiFood sells 9 one-off in-app purchases. Aeternum AirOps asks for nothing beyond the download.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
QiFood versus Aeternum AirOps: the parameters behind the verdict, then further details
ParameterQiFoodAeternum AirOps
PriceFreeFree
Rating4.2 (5 ratings) — better—
Positive reviews36.7% of reviews—
Number of ratings5 — better—
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size67 MB20 MB
Age rating12+4+
DeveloperDominik Wei-FiegAeternum Innovations LTD

In-app purchases

9 purchases

QiFood

One-time9
  • Grains$0.99
  • Pulses, Nuts and Seeds$0.99
  • Sweeteners, Dairy and Oils$0.99
Show 6 more
  • Fish$0.99
  • Vegetables$1.99
  • Fruits$1.99
  • Meat$1.99
  • Spices$1.99
  • Herbs$1.99
None

Aeternum AirOps

No in-app purchases

Questions

Is QiFood free?
QiFood is free to download, with in-app purchases available.
Is Aeternum AirOps free?
Aeternum AirOps is free to download, with no in-app purchases.
Do QiFood or Aeternum AirOps have ads?
Neither QiFood nor Aeternum AirOps shows ads.
Which is updated more often, QiFood or Aeternum AirOps?
QiFood ships an update every 2 months, and Aeternum AirOps every 3 months. Most recently, QiFood was updated on November 1, 2026 and Aeternum AirOps on October 27, 2026.

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