CO2 Risk Calculator vs AirCompare™
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CO2 Risk Calculator
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The LogiCO2 Risk Analyser for CO2 gas in an enclosed space. CO2 is the strongest growing gas application wise today in the world. It’s applications range from dispensing soft drinks and beer to industrial cleaning, but it is also the preferred slaughter house gas for pork and chicken. Therefore great care should be observed when using it. Around the world new legislation is being put into place. In the US there are a number of Safety codes that have to be considered: the IFC, the NFPA 55, NBIC, CGA and the OSHA. Since CO2 is heavy and accumulates from the floor and up. It has to be understood that the danger is therefore actually higher for children since they are much smaller. But it is to be understood as a guideline.
AirCompare™
Optimize home energy usage and save money with smart ventilation and thermostat control. This app analyzes indoor and outdoor air quality, local weather, and electricity rates to automatically adjust your HomeKit-enabled devices for optimal comfort and cost savings.
- Ventilation controller
- Thermostat controller
- Automatic HomeKit device control
- Energy consumption reduction
- Weather and electricity rate analysis
- Customizable rain sensitivity
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AirCompare™ reduces home energy consumption and saves you money by providing two smart tools, a ventilation controller and a thermostat controller. Both smart controllers can be used “manually” to give you advice on how to best adjust your ventilation and thermostat. AirCompare™ can also be configured to automatically control your HomeKit-enabled windows, fans and thermostats. The AirCompare™ ventilation controller calculates the energy content of your home’s interior air and compares it to the air outside. If you can get free heating or cooling by just opening your windows, AirCompare™ will make it happen! What if rain is coming? AirCompare™ checks your local weather for current and forecasted rain. You can decide how sensitive AirCompare will be to rain in the forecast. For instance, you might choose to leave your windows closed for the night if the chance of rain in the next 8 hours is 30% or more. The AirCompare™ thermostat controller uses your preferences, combined with an analysis of current conditions, to optimize the setting of your thermostat. AirCompare™ uses current electricity rates (where available) and your local weather forecast, along with your preferences, to calculate the ideal setting at any moment. The optimum setting balances your comfort against the expected cost of heating or cooling. For instance you might choose to tolerate a higher summer temperature when electricity rates are peaking, and enjoy a cooler temperature when electricity is less expensive late at night. You might turn off your A/C if you know a cold front is due soon. AirCompare™ simplifies your life by considering all the data and making these complex decisions for you.
Screenshots
Verdict
The clearest difference is update cadence: AirCompare™ at every 3 months against CO2 Risk Calculator's every 9 months. CO2 Risk Calculator's advantage is iOS requirement (11.0 vs 16.0). 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.
CO2 Risk Calculator ships an update every 9 months, AirCompare™ every 3 months. The most recent releases landed on October 24, 2026 and November 2, 2026 respectively.
| Parameter | CO2 Risk Calculator | AirCompare™ |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (3 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 9 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 6 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Logico2 International AB | Wayne Henderson |
In-app purchases
CO2 Risk Calculator
No in-app purchases
AirCompare™
No in-app purchases
Questions
Is CO2 Risk Calculator free?
Is AirCompare™ free?
Do CO2 Risk Calculator or AirCompare™ have ads?
Which is updated more often, CO2 Risk Calculator or AirCompare™?
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