# OBD JScan vs Key Genius

The clearest difference is review sentiment: OBD JScan at 80% against Key Genius's 33%. OBD JScan also leads on rating (4.7 vs 2.5) and update cadence (every 3 weeks vs every 3 months). Key Genius's advantage is in-app purchases (none vs 8) and iOS requirement (10.0 vs 13.0). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. OBD JScan sells 7 one-off in-app purchases. Key Genius asks for nothing beyond the download.

OBD JScan holds the better App Store score, 4.7 against 2.5. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 63, 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 33% of Key Genius's.

OBD JScan ships an update every 3 weeks, Key Genius every 3 months. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | OBD JScan | Key Genius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/obd-jscan/id1445903514/reviews)** | [2.5 (63 ratings)](https://appshunter.io/ios/app/key-genius/id1562850882/reviews) |
| Number of ratings | **1.3K** | 63 |
| Positive reviews | **79.6% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 403 MB | 161 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Piotr Bialic](https://appshunter.io/developer/960266498) | [Autel Intelligent Technology Co., Ltd.](https://appshunter.io/developer/770747094) |

## What reviewers say

### OBD JScan

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

This app provides advanced diagnostics for Jeep, Chrysler, and Dodge vehicles. It allows users to read and clear trouble codes, view live sensor data, and access settings across all vehicle modules, including ABS and transmission.

**Highlights:** Read/Clear Diagnostic Trouble Codes, Access Live Data from all sensors, View vehicle settings, Access all vehicle modules (ABS, Transmission, etc.), Identify module, VIN, Part Number, and Version, Share vehicle trouble codes

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| + 1 garage license | $9.99 | one-time |
| 1 VIN license | $20.99 | one-time |
| Add 1 VIN | $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


### Key Genius

[App page](https://appshunter.io/ios/app/key-genius/id1562850882)

Easily program new car keys at home using your smartphone. Compatible with thousands of vehicle models, this app guides you through the DIY installation process after receiving a pre-cut key.

**Highlights:** DIY car key pairing, Compatible with thousands of vehicles, Step-by-step phone instructions, Home installation, Pre-cut key delivery

**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 Key Genius free?

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

### Which has better reviews, OBD JScan or Key Genius?

OBD JScan is rated higher. OBD JScan averages 4.7 out of 5 from 1.3K ratings, while Key Genius averages 2.5 from 63 ratings.

### Do OBD JScan or Key Genius have ads?

Neither OBD JScan nor Key Genius shows ads.

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

OBD JScan ships an update every 3 weeks, and Key Genius every 3 months. Most recently, OBD JScan was updated on October 19, 2026 and Key Genius on October 15, 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.*