# OBD JScan vs JKBlaster

The clearest difference is review sentiment: OBD JScan at 80% against JKBlaster's 25%. OBD JScan also leads on rating (4.7 vs 4.0) and ratings volume (1.3K vs 6). JKBlaster's advantage is in-app purchases (none vs 8) and iOS requirement (10.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

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

OBD JScan holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 6, 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 25% of JKBlaster's.

OBD JScan ships an update every 3 weeks, JKBlaster every 5 weeks. The most recent releases landed on October 16, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | OBD JScan | JKBlaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/obd-jscan/id1445903514/reviews)** | [4.0 (6 ratings)](https://appshunter.io/ios/app/jkblaster/id1532787247/reviews) |
| Number of ratings | **1.3K** | 6 |
| Positive reviews | **79.6% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 403 MB | 145 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Piotr Bialic](https://appshunter.io/developer/960266498) | [JND Collections, Inc](https://appshunter.io/developer/1534014356) |

## 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


### JKBlaster

[App page](https://appshunter.io/ios/app/jkblaster/id1532787247)

This utility app connects to a separate WiFi OBD2 device to modify calibrations and access live data for 2007-2018 Jeep JK vehicles. It allows for DTC scanning and viewing real-time vehicle information. The app can be browsed without the hardware.

**Highlights:** Modify vehicle calibrations, Access live features, DTC scanning, View live data, WiFi OBD2 device communication

**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 JKBlaster free?

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

### Which has better reviews, OBD JScan or JKBlaster?

OBD JScan is rated higher. OBD JScan averages 4.7 out of 5 from 1.3K ratings, while JKBlaster averages 4.0 from 6 ratings.

### Do OBD JScan or JKBlaster have ads?

Neither OBD JScan nor JKBlaster shows ads.

### Which is updated more often, OBD JScan or JKBlaster?

OBD JScan ships an update every 3 weeks, and JKBlaster every 5 weeks. Most recently, OBD JScan was updated on October 16, 2026 and JKBlaster on October 3, 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.*