# OBD JScan vs RV Leveling System

The clearest difference is review sentiment: OBD JScan at 79% against RV Leveling System's 0%. OBD JScan also leads on rating (4.7 vs 1.0) and update cadence (every 3 weeks vs every 5 months). RV Leveling System's advantage is in-app purchases (none vs 8). 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. RV Leveling System asks for nothing beyond the download.

OBD JScan holds the better App Store score, 4.7 against 1.0. 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: 79% of OBD JScan's written reviews are positive against 0% of RV Leveling System's.

OBD JScan ships an update every 3 weeks, RV Leveling System every 5 months. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | OBD JScan | RV Leveling System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/obd-jscan/id1445903514/reviews)** | [1.0 (4 ratings)](https://appshunter.io/ios/app/rv-leveling-system/id6752945923/reviews) |
| Number of ratings | **1.3K** | 4 |
| Positive reviews | **79.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 403 MB | 60 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Piotr Bialic](https://appshunter.io/developer/960266498) | [凯 殷](https://appshunter.io/developer/1841088893) |

## 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


### RV Leveling System

[App page](https://appshunter.io/ios/app/rv-leveling-system/id6752945923)

This app connects to a Bluetooth leveling device to help you monitor and adjust your RV's level in real-time. It simplifies the leveling process, making it a one-person job. A compatible leveling device is required for full functionality.

**Highlights:** Real-time RV level monitoring, Bluetooth device pairing, Precision leveling measurements, Simplified leveling process, One-person operation

**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 RV Leveling System free?

RV Leveling System is free to download, with no in-app purchases.

### Which has better reviews, OBD JScan or RV Leveling System?

OBD JScan is rated higher. OBD JScan averages 4.7 out of 5 from 1.3K ratings, while RV Leveling System averages 1.0 from 4 ratings.

### Do OBD JScan or RV Leveling System have ads?

Neither OBD JScan nor RV Leveling System shows ads.

### Which is updated more often, OBD JScan or RV Leveling System?

OBD JScan ships an update every 3 weeks, and RV Leveling System every 5 months. Most recently, OBD JScan was updated on September 25, 2026 and RV Leveling System on September 20, 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.*