# OBD JScan vs Auto Key Max

The clearest difference is rating: OBD JScan at 4.7 against Auto Key Max's 2.6. OBD JScan also leads on review sentiment (80% vs 46%) and ratings volume (1.3K vs 18). Auto Key Max's advantage is in-app purchases (none vs 7). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OBD JScan sells 6 one-off in-app purchases. Auto Key Max asks for nothing beyond the download.

OBD JScan holds the better App Store score, 4.7 against 2.6. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 80% of OBD JScan's written reviews are positive against 46% of Auto Key Max's.

OBD JScan ships an update every 3 weeks, Auto Key Max every 11 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | OBD JScan | Auto Key Max |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/obd-jscan/id1445903514/reviews)** | [2.6 (18 ratings)](https://appshunter.io/ios/app/auto-key-max/id6636536386/reviews) |
| Number of ratings | **1.3K** | 18 |
| Positive reviews | **79.6% of reviews** | 46.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 403 MB | 144 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Piotr Bialic](https://appshunter.io/developer/960266498) | [Auto Key Max Pro Corporation](https://appshunter.io/developer/1763007592) |

## What reviewers say

### OBD JScan

[App page](https://appshunter.io/ios/app/obd-jscan/id1445903514)

This diagnostic application provides in-depth access to vehicle modules, allowing users to read and clear trouble codes, view live sensor data, and access vehicle settings. It supports a wide range of Jeep, Chrysler, and Dodge models, offering powerful customization and diagnostic features.

**Highlights:** Read and clear diagnostic trouble codes, Access live data from all vehicle sensors, View vehicle settings and module information, Supports ABS, transmission, and other modules, Wide compatibility with Jeep, Chrysler, Dodge, Enables features locked by dealers

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| + 1 garage license | $9.99 | one-time |
| 1 VIN license | $20.99 | one-time |
| Add 1 VIN Vehicle Slot | $20.99 | one-time |
| 3 VIN licenses | $54.99 | one-time |
| 5 VIN Licenses | $84.99 | one-time |
| 10 VIN Licenses | $149.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 🔧 Powerful customization options
- 👍 Excellent customer support
- 💡 Useful diagnostic and monitoring features
- 🔓 Enables features otherwise locked by dealer

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🔌 Requires additional hardware purchase
- ⚠️ Compatibility issues with newer vehicle models
- 🕰️ Slow performance in certain scenarios

**Reported bugs**

- Inability to save/export diagnostic data
- Inconsistent behavior when changing vehicle settings

**Requested features**

- Expanded vehicle compatibility
- Improved stability and reliability
- Enhanced user interface and guidance
- Integration with other vehicle apps/services


### Auto Key Max

[App page](https://appshunter.io/ios/app/auto-key-max/id6636536386)

This application provides remote car key programming for a wide range of vehicle makes and models. It supports programming for Ford, Dodge, GM, Honda, Mazda, Nissan, Toyota, Mitsubishi, Suzuki, Subaru, Hyundai, and Kia vehicles up to recent model years.

**Highlights:** Remote car key programming, Supports Ford/Lincoln up to 2023, Supports Dodge/Jeep/Chrysler up to 2021, Supports GM/Buick/Chevrolet up to 2022, Supports Honda/Acura up to 2024, Supports Nissan/Infiniti up to 2024, Supports Mazda up to 2022

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OBD JScan free?

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

### Is Auto Key Max free?

Auto Key Max is free to download, with no in-app purchases.

### Which has better reviews, OBD JScan or Auto Key Max?

OBD JScan is rated higher. OBD JScan averages 4.7 out of 5 from 1.3K ratings, while Auto Key Max averages 2.6 from 18 ratings.

### Do OBD JScan or Auto Key Max have ads?

Neither OBD JScan nor Auto Key Max shows ads.

### Which is updated more often, OBD JScan or Auto Key Max?

OBD JScan ships an update every 3 weeks, and Auto Key Max every 11 days. Most recently, OBD JScan was updated on October 29, 2026 and Auto Key Max on October 24, 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.*