# Drive Target vs CO2 sensor

The clearest difference is rating: Drive Target at 5.0 against CO2 sensor's 3.4. Drive Target also leads on update cadence (every 2 months vs every 12 months) and iOS requirement (8.0 vs 15.6). CO2 sensor's advantage is device support (4 vs 2). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Drive Target holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 3 and 7 respectively.

Drive Target ships an update every 2 months, CO2 sensor every 12 months. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Drive Target | CO2 sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/drive-target/id955254094/reviews)** | [3.4 (7 ratings)](https://appshunter.io/ios/app/co2-sensor/id1643286074/reviews) |
| Number of ratings | 3 | **7** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 12 months |
| Monetization | Free | Free |
| Size | 7 MB | 0 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Sam Wang](https://appshunter.io/developer/942373056) | [sighmon](https://appshunter.io/developer/377815161) |

## What reviewers say

### Drive Target

[App page](https://appshunter.io/ios/app/drive-target/id955254094)

Track your vehicle's odometer readings against a set target for your novated lease. Easily enter readings to visualize progress and receive daily/weekly rate calculations to help you meet your goals.

**Highlights:** Odometer reading tracking, Progress visualization, Daily/weekly rate calculations, Targeted odometer projection, Today Extension for quick access, Visual progress indicators

**Features:** macOS Compatibility

**In-app purchases:** none


### CO2 sensor

[App page](https://appshunter.io/ios/app/co2-sensor/id1643286074)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Drive Target free?

Drive Target is free to download, with no in-app purchases.

### Is CO2 sensor free?

CO2 sensor is free to download, with no in-app purchases.

### Which has better reviews, Drive Target or CO2 sensor?

Drive Target is rated higher. Drive Target averages 5.0 out of 5 from 3 ratings, while CO2 sensor averages 3.4 from 7 ratings.

### Do Drive Target or CO2 sensor have ads?

Neither Drive Target nor CO2 sensor shows ads.

### Which is updated more often, Drive Target or CO2 sensor?

Drive Target ships an update every 2 months, and CO2 sensor every 12 months. Most recently, Drive Target was updated on October 13, 2026 and CO2 sensor on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*