# JProg vs OBD JScan

The clearest difference is rating: OBD JScan at 4.7 against JProg's 3.7. OBD JScan also leads on ratings volume (1.3K vs 11) and update cadence (every 3 weeks vs every 3 months). JProg's advantage is in-app purchases (none vs 8) and iOS requirement (8.1 vs 13.0). On price, ads and device support there is nothing between them.

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

OBD JScan holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 11, so its average is the more settled of the two.

JProg ships an update every 3 months, OBD JScan every 3 weeks. The most recent releases landed on September 25, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | JProg | OBD JScan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (11 ratings)](https://appshunter.io/ios/app/jprog/id882358333/reviews) | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/obd-jscan/id1445903514/reviews)** |
| Number of ratings | 11 | **1.3K** |
| Positive reviews | — | 79.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 403 MB |
| Requires iOS | **8.1** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Speedoshop](https://appshunter.io/developer/882358336) | [Piotr Bialic](https://appshunter.io/developer/960266498) |

## What reviewers say

### JProg

[App page](https://appshunter.io/ios/app/jprog/id882358333)

This tool allows for the programming of automotive memory modules. It is designed for mechanics and enthusiasts to modify vehicle settings.

**Highlights:** Automotive memory programming, Vehicle settings modification, Designed for mechanics, For automotive enthusiasts

**In-app purchases:** none


### 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


## Frequently asked questions

### Is JProg free?

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

### Is OBD JScan free?

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

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

OBD JScan is rated higher. JProg averages 3.7 out of 5 from 11 ratings, while OBD JScan averages 4.7 from 1.3K ratings.

### Do JProg or OBD JScan have ads?

Neither JProg nor OBD JScan shows ads.

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

JProg ships an update every 3 months, and OBD JScan every 3 weeks. Most recently, JProg was updated on September 25, 2026 and OBD JScan on October 22, 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.*