# OBD JScan vs Ultra Boost

The clearest difference is in-app purchases: Ultra Boost at none against OBD JScan's 8. Ultra Boost also leads on rating (5.0 vs 4.7) and review sentiment (100% vs 80%). OBD JScan's advantage is ratings volume (1.3K vs 4) and update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Ultra Boost holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 4, 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 100% of Ultra Boost's.

OBD JScan ships an update every 3 weeks, Ultra Boost every 2 months. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | OBD JScan | Ultra Boost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.3K ratings)](https://appshunter.io/ios/app/obd-jscan/id1445903514/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/ultra-boost/id1471601228/reviews)** |
| Number of ratings | **1.3K** | 4 |
| Positive reviews | 79.6% of reviews | **100.0% 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 | 403 MB | 81 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Piotr Bialic](https://appshunter.io/developer/960266498) | [ECU=SHOP](https://appshunter.io/developer/1389703440) |

## 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


### Ultra Boost

[App page](https://appshunter.io/ios/app/ultra-boost/id1471601228)

This application allows users to wirelessly adjust fuel supply and monitor engine performance metrics like RPM, boost, and speed. It offers four operating modes, including an AI mode, to optimize engine output and increase horsepower.

**Highlights:** Wireless fuel supply adjustment, RPM, boost, and speed display, Four operating modes with AI, Monitor oil pressure and air flow, GPS speed and weather data

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OBD JScan free?

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

### Is Ultra Boost free?

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

### Which has better reviews, OBD JScan or Ultra Boost?

Ultra Boost is rated higher. OBD JScan averages 4.7 out of 5 from 1.3K ratings, while Ultra Boost averages 5.0 from 4 ratings.

### Do OBD JScan or Ultra Boost have ads?

Neither OBD JScan nor Ultra Boost shows ads.

### Which is updated more often, OBD JScan or Ultra Boost?

OBD JScan ships an update every 3 weeks, and Ultra Boost every 2 months. Most recently, OBD JScan was updated on October 19, 2026 and Ultra Boost on October 8, 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.*