# OBD JScan vs Scrap Science

The clearest difference is rating: OBD JScan at 4.7 against Scrap Science's 4.3. OBD JScan also leads on ratings volume (1.3K vs 3). Scrap Science's advantage is review sentiment (100% vs 80%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. OBD JScan sells 6 one-off in-app purchases and Scrap Science sells 6 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

OBD JScan holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 80% of OBD JScan's written reviews are positive against 100% of Scrap Science's, so the app with the better star average is not the one people write more warmly about.

OBD JScan ships an update every 3 weeks, Scrap Science every 2 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OBD JScan | Scrap Science |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/obd-jscan/id1445903514/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/scrap-science/id6648758210/reviews) |
| Number of ratings | **1.3K** | 3 |
| Positive reviews | 79.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 403 MB | 71 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Piotr Bialic](https://appshunter.io/developer/960266498) | [TY International LLC](https://appshunter.io/developer/1576465822) |

## 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


### Scrap Science

[App page](https://appshunter.io/ios/app/scrap-science/id6648758210)

This AI-powered app helps U.S. scrap recycling professionals identify scrap categories, assess material content, and impurity levels. It provides real-time pricing for identified materials, enabling profitable decisions on the spot. Streamline your workflow with this fast, easy, and reliable tool.

**Highlights:** AI-powered scrap identification, Material content assessment, Impurity level analysis, Real-time pricing, Workflow streamlining, Patent-authorized innovation

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly auto-subscription | $9.99 | per month |
| Enterprise Package 1 | $79.99 | per month |
| Enterprise Package 2 | $148.99 | per month |
| Enterprise Package 3 | $209.00 | per month |
| Enterprise Package 4 | $590.00 | per month |
| Try it out | $0.99 | one-time |


## Frequently asked questions

### Is OBD JScan free?

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

### Is Scrap Science free?

Scrap Science is free to download, with in-app purchases available.

### Which has better reviews, OBD JScan or Scrap Science?

OBD JScan is rated higher. OBD JScan averages 4.7 out of 5 from 1.3K ratings, while Scrap Science averages 4.3 from 3 ratings.

### Do OBD JScan or Scrap Science have ads?

Neither OBD JScan nor Scrap Science shows ads.

### Which is updated more often, OBD JScan or Scrap Science?

OBD JScan ships an update every 3 weeks, and Scrap Science every 2 weeks. Most recently, OBD JScan was updated on November 2, 2026 and Scrap Science on October 30, 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.*