# OBD JScan vs Zlink Assistant

The clearest difference is review sentiment: OBD JScan at 80% against Zlink Assistant's 0%. OBD JScan also leads on rating (4.7 vs 1.6) and ratings volume (1.3K vs 9). Zlink Assistant's advantage is in-app purchases (none vs 8). On price and ads there is nothing between them.

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

OBD JScan holds the better App Store score, 4.7 against 1.6. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 9, 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 0% of Zlink Assistant's.

OBD JScan ships an update every 3 weeks, Zlink Assistant every 2 months. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | OBD JScan | Zlink Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/obd-jscan/id1445903514/reviews)** | [1.6 (9 ratings)](https://appshunter.io/ios/app/zlink-assistant/id6444682611/reviews) |
| Number of ratings | **1.3K** | 9 |
| Positive reviews | **79.6% of reviews** | 0.0% 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 | 22 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Piotr Bialic](https://appshunter.io/developer/960266498) | [ZKTeco Inc.](https://appshunter.io/developer/955313767) |

## 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


### Zlink Assistant

[App page](https://appshunter.io/ios/app/zlink-assistant/id6444682611)

This utility app allows remote device operation and management. Connect by scanning a QR code or entering device details. View attendance data and manage users on compatible time and attendance devices.

**Highlights:** Remote device operation, QR code connection, Manual IP/port connection, Basic user management, View daily attendance data

**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 Zlink Assistant free?

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

### Which has better reviews, OBD JScan or Zlink Assistant?

OBD JScan is rated higher. OBD JScan averages 4.7 out of 5 from 1.3K ratings, while Zlink Assistant averages 1.6 from 9 ratings.

### Do OBD JScan or Zlink Assistant have ads?

Neither OBD JScan nor Zlink Assistant shows ads.

### Which is updated more often, OBD JScan or Zlink Assistant?

OBD JScan ships an update every 3 weeks, and Zlink Assistant every 2 months. Most recently, OBD JScan was updated on October 22, 2026 and Zlink Assistant on October 16, 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.*