# OBD2 Scanner | OBD Auto Doctor vs RSCHIP CHIPTUNING

The clearest difference is rating: RSCHIP CHIPTUNING at 5.0 against OBD2 Scanner | OBD Auto Doctor's 4.4. RSCHIP CHIPTUNING also leads on in-app purchases (none vs 9) and iOS requirement (11.0 vs 17.0). OBD2 Scanner | OBD Auto Doctor's advantage is ratings volume (6.2K vs 2) and update cadence (every 3 weeks vs every 2 months). On price, review sentiment, 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. RSCHIP CHIPTUNING asks for nothing beyond the download.

RSCHIP CHIPTUNING 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 2, so its average is the more settled of the two. Written reviews complicate that: 30% of OBD2 Scanner | OBD Auto Doctor's written reviews are positive against 25% of RSCHIP CHIPTUNING's, so the app with the better star average is not the one people write more warmly about.

OBD2 Scanner | OBD Auto Doctor ships an update every 3 weeks, RSCHIP CHIPTUNING every 2 months. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | OBD2 Scanner | OBD Auto Doctor | RSCHIP CHIPTUNING |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (6.2K ratings)](https://appshunter.io/ios/app/obd2-scanner-obd-auto-doctor/id908897183/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rschip-chiptuning/id1007204524/reviews)** |
| Number of ratings | **6.2K** | 2 |
| Positive reviews | **30.3% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 19 MB | 97 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Creosys](https://appshunter.io/developer/908897186) | [Tachos LLC](https://appshunter.io/developer/723695073) |

## 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


### RSCHIP CHIPTUNING

[App page](https://appshunter.io/ios/app/rschip-chiptuning/id1007204524)

Enhance your car's performance with custom tunes and adjustable driving modes like Sport, Sport+, and Eco. This app offers an in-app installation manual and 24-hour support for an easier chip-tuning experience.

**Highlights:** Download vehicle-specific tunes, Customize driving modes (Sport, Sport+, Eco), In-app installation manual, 24-hour support service, Improved functionality and design

**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 RSCHIP CHIPTUNING free?

RSCHIP CHIPTUNING is free to download, with no in-app purchases.

### Which has better reviews, OBD2 Scanner | OBD Auto Doctor or RSCHIP CHIPTUNING?

RSCHIP CHIPTUNING is rated higher. OBD2 Scanner | OBD Auto Doctor averages 4.4 out of 5 from 6.2K ratings, while RSCHIP CHIPTUNING averages 5.0 from 2 ratings.

### Do OBD2 Scanner | OBD Auto Doctor or RSCHIP CHIPTUNING have ads?

Neither OBD2 Scanner | OBD Auto Doctor nor RSCHIP CHIPTUNING shows ads.

### Which is updated more often, OBD2 Scanner | OBD Auto Doctor or RSCHIP CHIPTUNING?

OBD2 Scanner | OBD Auto Doctor ships an update every 3 weeks, and RSCHIP CHIPTUNING every 2 months. Most recently, OBD2 Scanner | OBD Auto Doctor was updated on October 21, 2026 and RSCHIP CHIPTUNING on October 19, 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.*