# OBD2 Scanner | OBD Auto Doctor vs Car Sensor

The clearest difference is review sentiment: Car Sensor at 100% against OBD2 Scanner | OBD Auto Doctor's 30%. Car Sensor also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 9). OBD2 Scanner | OBD Auto Doctor's advantage is update cadence (every 3 weeks vs every 32 months) and ratings volume (6.2K vs 1). On price, ads and device support there is nothing between them.

Both are free to download. OBD2 Scanner | OBD Auto Doctor sells 9 in-app purchases, starting at $4.99 per month. Car Sensor asks for nothing beyond the download.

Car Sensor holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: OBD2 Scanner | OBD Auto Doctor has 6.2K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 30% of OBD2 Scanner | OBD Auto Doctor's written reviews are positive against 100% of Car Sensor's.

OBD2 Scanner | OBD Auto Doctor ships an update every 3 weeks, Car Sensor every 32 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | OBD2 Scanner | OBD Auto Doctor | Car Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (6.2K ratings)](https://appshunter.io/ios/app/obd2-scanner-obd-auto-doctor/id908897183/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/car-sensor/id1192617609/reviews)** |
| Number of ratings | **6.2K** | 1 |
| Positive reviews | 30.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 32 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 19 MB | 9 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Creosys](https://appshunter.io/developer/908897186) | [Mathew Yaldo](https://appshunter.io/developer/1148169685) |

## What reviewers say

### OBD2 Scanner | OBD Auto Doctor

[App page](https://appshunter.io/ios/app/obd2-scanner-obd-auto-doctor/id908897183)

Diagnose your car's engine light issues and monitor real-time performance data. This app allows you to read and clear diagnostic trouble codes, track fuel consumption, and view sensor data. It's a comprehensive tool for understanding your vehicle's health.

**Highlights:** Read and clear OBD2 diagnostic trouble codes (DTC), Reset Check Engine Light, Monitor real-time vehicle data and sensor readings, Track fuel consumption, Read readiness monitor status for emissions testing, Initiate service routines, Send diagnostic data via email

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly (legacy) | $4.99 | per month |
| Personal, monthly | $4.99 | per month |
| Premium, monthly | $5.99 | per month |
| Professional, monthly | $6.99 | per month |
| Yearly (legacy) | $23.99 | per year |
| Personal, yearly | $23.99 | per year |
| Professional, yearly | $29.99 | per year |
| Premium, annual | $29.99 | per year |
| OBD Auto Doctor Pro (legacy) | $29.99 | one-time |

**What reviewers like**

- 🚀 Works great
- 👍 Easy to use
- 🚀 Accurate diagnostics
- 🚀 Extensive adapter support
- 👍 Helpful for DIY mechanics

**What reviewers complain about**

- 🔒 Requires subscription for full functionality
- 🐛 Connection issues
- 🐛 Inconsistent performance
- 🐛 Doesn't work with all vehicles
- 💰 Expensive subscription

**Reported bugs**

- App crashes on launch
- Fails to detect existing fault codes
- Subscription issues and inability to cancel
- Incompatible with certain OBD2 adapters

**Requested features**

- Add support for more vehicle makes and models
- Improve Bluetooth/WiFi connectivity
- Provide more detailed diagnostic information
- Allow clearing of error codes without subscription
- Add live data dashboards and graphs


### Car Sensor

[App page](https://appshunter.io/ios/app/car-sensor/id1192617609)

This app connects to specific robotic car sensors, displaying real-time readings. It alerts users when sensor thresholds are exceeded, providing essential monitoring for compatible vehicles.

**Highlights:** Connects to Manoogian robotic car sensors, Connects to similar Arduino sensors, Displays real-time sensor readings, Provides threshold warnings, Supports 2016-2017 Manoogian cars

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OBD2 Scanner | OBD Auto Doctor free?

OBD2 Scanner | OBD Auto Doctor is free to download, with in-app purchases available.

### Is Car Sensor free?

Car Sensor is free to download, with no in-app purchases.

### Which has better reviews, OBD2 Scanner | OBD Auto Doctor or Car Sensor?

Car Sensor is rated higher. OBD2 Scanner | OBD Auto Doctor averages 4.4 out of 5 from 6.2K ratings, while Car Sensor averages 5.0 from 1 ratings.

### Do OBD2 Scanner | OBD Auto Doctor or Car Sensor have ads?

Neither OBD2 Scanner | OBD Auto Doctor nor Car Sensor shows ads.

### Which is updated more often, OBD2 Scanner | OBD Auto Doctor or Car Sensor?

OBD2 Scanner | OBD Auto Doctor ships an update every 3 weeks, and Car Sensor every 32 months. Most recently, OBD2 Scanner | OBD Auto Doctor was updated on November 1, 2026 and Car Sensor on November 2, 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.*