# ThinkDiag+ vs Autophix

The clearest difference is rating: ThinkDiag+ at 4.5 against Autophix's 3.8. ThinkDiag+ also leads on review sentiment (74% vs 38%) and in-app purchases (none vs 12). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Autophix sells 12 one-off in-app purchases. ThinkDiag+ asks for nothing beyond the download.

ThinkDiag+ holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: ThinkDiag+ has 4.3K ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 74% of ThinkDiag+'s written reviews are positive against 38% of Autophix's.

ThinkDiag+ ships an update every 3 weeks, Autophix every 6 weeks. Both last shipped on October 16, 2026.

## The numbers

| Metric | ThinkDiag+ | Autophix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4.3K ratings)](https://appshunter.io/ios/app/thinkdiag-plus/id1483420979/reviews)** | [3.8 (28 ratings)](https://appshunter.io/ios/app/autophix/id1546574318/reviews) |
| Number of ratings | **4.3K** | 28 |
| Positive reviews | **74.1% of reviews** | 37.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 539 MB | 338 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [THINKCAR INC](https://appshunter.io/developer/1464847379) | [Autophix Tech Co., Ltd](https://appshunter.io/developer/650288249) |

## What reviewers say

### ThinkDiag+

[App page](https://appshunter.io/ios/app/thinkdiag-plus/id1483420979)

This app provides professional-level vehicle diagnostics, offering features like reading/clearing fault codes, data flow analysis, and special maintenance functions. It supports a wide range of car brands and allows users to subscribe to specific diagnostic software. Connects via Bluetooth to your smartphone for intelligent vehicle analysis.

**Highlights:** OE-level diagnostic functions, Full OBD II diagnosis, Special maintenance functions, Supports 100+ vehicle brands, Automatic VIN reading, Professional diagnostic reports, In-app user community

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🚀 Powerful diagnostic capabilities
- 🚀 Affordable price
- 🚀 Helpful customer support
- 🚀 Versatile for DIY and professionals

**What reviewers complain about**

- 🐛 Occasional crashes or freezes
- 🐛 Compatibility issues with certain vehicles
- 🔒 Concerns about annual subscription fees
- 🔒 Limited functionality on iOS devices

**Reported bugs**

- Failure to recognize VIN or vehicle information
- Inability to clear certain error codes
- Inconsistent performance across different devices

**Requested features**

- Improved user interface and navigation
- More detailed troubleshooting guides
- Expanded vehicle coverage and special functions
- Offline mode for diagnostics


### Autophix

[App page](https://appshunter.io/ios/app/autophix/id1546574318)

This application provides comprehensive vehicle diagnostics, allowing users to read and clear error codes, view live data streams, and perform maintenance resets. It supports full OBD2 diagnostic modes and offers a dashboard for monitoring vehicle performance. Diagnostic data can be saved and shared.

**Highlights:** Read and erase diagnostic trouble codes, View live data streams, Perform maintenance resets, Support for special functions (e.g., brake pad replacement), Full OBD2 diagnostic mode, Save and share diagnostic data

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| For BMWDiagnosis | $0.99 | one-time |
| For VWDiagnosis | $0.99 | one-time |
| For HONDADiagnosis | $9.99 | one-time |
| For LROVERDiagnosis | $9.99 | one-time |
| For OPELDiagnosis | $9.99 | one-time |
| For HYUNDAIDiagnosis | $9.99 | one-time |
| For RENAULTDiagnosis | $9.99 | one-time |
| For VOLVODiagnosis | $9.99 | one-time |
| For TOYOTADiagnosis | $9.99 | one-time |
| For BENZDiagnosis | $9.99 | one-time |
| For VAUXHALLDiagnosis | $9.99 | one-time |
| For NISSANDiagnosis | $9.99 | one-time |


## Frequently asked questions

### Is ThinkDiag+ free?

ThinkDiag+ is free to download, with no in-app purchases.

### Is Autophix free?

Autophix is free to download, with in-app purchases available.

### Which has better reviews, ThinkDiag+ or Autophix?

ThinkDiag+ is rated higher. ThinkDiag+ averages 4.5 out of 5 from 4.3K ratings, while Autophix averages 3.8 from 28 ratings.

### Do ThinkDiag+ or Autophix have ads?

Neither ThinkDiag+ nor Autophix shows ads.

### Which is updated more often, ThinkDiag+ or Autophix?

ThinkDiag+ ships an update every 3 weeks, and Autophix every 6 weeks. Most recently, ThinkDiag+ was updated on October 16, 2026 and Autophix on October 16, 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.*