# OBD JScan vs PairMyKey

The clearest difference is in-app purchases: PairMyKey at none against OBD JScan's 8. PairMyKey also leads on update cadence (weekly vs every 3 weeks). OBD JScan's advantage is review sentiment (80% vs 52%) and rating (4.7 vs 4.5). On price, ratings volume, ads and device support there is nothing between them.

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

OBD JScan holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 1.3K and 703 respectively. Written reviews point the same way: 80% of OBD JScan's written reviews are positive against 52% of PairMyKey's.

OBD JScan ships an update every 3 weeks, PairMyKey weekly. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | OBD JScan | PairMyKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/obd-jscan/id1445903514/reviews)** | [4.5 (703 ratings)](https://appshunter.io/ios/app/pairmykey/id1643530684/reviews) |
| Number of ratings | **1.3K** | 703 |
| Positive reviews | **79.6% of reviews** | 51.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 403 MB | 187 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Piotr Bialic](https://appshunter.io/developer/960266498) | [THE SOCIAL PLUS HOLDING LLC](https://appshunter.io/developer/1643530686) |

## 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


### PairMyKey

[App page](https://appshunter.io/ios/app/pairmykey/id1643530684)

This app simplifies the process of programming vehicle keys and remotes for most cars. It works in conjunction with a dongle, connecting to your vehicle's OBDII port to enable effortless key programming. Save time and money on dealership services.

**Highlights:** Program vehicle keys, Program remotes, OBDII port connection, User-friendly interface, Save time and money

**Features:** macOS Compatibility, 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 PairMyKey free?

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

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

OBD JScan is rated higher. OBD JScan averages 4.7 out of 5 from 1.3K ratings, while PairMyKey averages 4.5 from 703 ratings.

### Do OBD JScan or PairMyKey have ads?

Neither OBD JScan nor PairMyKey shows ads.

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

OBD JScan ships an update every 3 weeks, and PairMyKey weekly. Most recently, OBD JScan was updated on October 16, 2026 and PairMyKey on October 17, 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.*