CO2 sensor vs EV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CO2 sensor
Monitor CO2, temperature, and humidity levels in real-time using a Bluetooth sensor. Save readings with location data and sync them across Apple devices via iCloud. View historical data on a map.
- Real-time CO2, temperature, and humidity readings
- Bluetooth sensor integration
- Save readings with location
- iCloud sync across devices
- Map view of saved readings
- Open source code available
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Read CO2, temperature, and humidity from your Bluetooth Sensirion SCD-41 sensor in realtime. Save your readings with your current location and have it sync across your devices via iCloud. See previously saved readings with a map of the location that those readings were taken. Works across iPhone, iPad, and macOS devices. Open source code: https://github.com/sighmon/ios-ble-co2-sensor
EV
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Calculate Distance Possible by inputting either… Vehicle’s Displayed Kms/Miles & Battery % Or Vehicle’s Displayed kWh/100 & Battery % Calculate Charge kWh & Resulting Range by inputting… Charged To Battery % * Battery Degradation adjustment possible. * Mode Selection and adjustment possible. * Battery Settings and Calculation Methods have Instructions to help using the App. * EV-EziR will help you plan a trip quickly and easily by calculating… How far you can travel to your “Minimum Battery Setting” with your “Current Battery %” (SOC). What % Charge you need for a required Distance. * Results are easily re-calculated en route by adjusting the App’s kWh/100 to the same as your Vehicle and distance remaining. * EV-EziR caters for both Km and Miles. * Charging Results Range, kWh and Charge % are Calculated automatically by adjusting the Charged To % Stepper. Note: Results are approximate but as close as possible to actual but… You will have to have the correct Battery Size entered to get accurate results. (Battery kWh size varies within the same model of a vehicle). Results will change with conditions and/or driving style… This app is for informational purposes only. The developer is not responsible for misuse or any outcomes resulting from its use.
Screenshots
Verdict
The clearest difference is update cadence: EV at weekly against CO2 sensor's every 18 months. CO2 sensor's advantage is device support (4 vs 2) and iOS requirement (15.6 vs 18.1). On price, ads and in-app purchases 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 sensor ships an update every 18 months, EV weekly. The most recent releases landed on September 16, 2026 and September 10, 2026 respectively.
| Parameter | CO2 sensor | EV |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 18 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.1 |
| Further details — not scored | ||
| Size | 0 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | sighmon | Guy MacDonald |
In-app purchases
CO2 sensor
No in-app purchases
EV
No in-app purchases
