# PairMyKey vs CAR OBD

The clearest difference is rating: CAR OBD at 5.0 against PairMyKey's 4.1. PairMyKey's advantage is in-app purchases (none vs 5) and review sentiment (33% vs 0%). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CAR OBD sells 5 one-off in-app purchases. PairMyKey asks for nothing beyond the download.

CAR OBD holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: PairMyKey has 282 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 33% of PairMyKey's written reviews are positive against 0% of CAR OBD's, so the app with the better star average is not the one people write more warmly about.

PairMyKey ships an update weekly, CAR OBD every 6 weeks. The most recent releases landed on September 21, 2026 and August 2, 2026 respectively.

## The numbers

| Metric | PairMyKey | CAR OBD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (282 ratings)](https://appshunter.io/ios/app/pairmykey/id1643530684/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/car-obd/id6470771313/reviews)** |
| Number of ratings | **282** | 1 |
| Positive reviews | **32.7% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 187 MB | 15 MB |
| Requires iOS | 13.0 | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [THE SOCIAL PLUS HOLDING LLC](https://appshunter.io/developer/1643530686) | [Dongguan Shendu Research Intelligent Technology Co., Ltd.](https://appshunter.io/developer/1827187525) |

## What reviewers say

### 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


### CAR OBD

[App page](https://appshunter.io/ios/app/car-obd/id6470771313)

This utility app helps users manage car keys by facilitating the matching of existing keys and the addition of new ones. It supports both single key additions and batch processing for multiple keys.

**Highlights:** Match car keys, Add single car key, Batch add multiple keys, Supports iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OBD number recharge One | $3.00 | one-time |
| OBD number recharge Two | $6.00 | one-time |
| OBD number recharge three | $9.00 | one-time |
| OBD number recharge four | $12.00 | one-time |
| OBD number recharge five | $15.00 | one-time |


## Frequently asked questions

### Is PairMyKey free?

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

### Is CAR OBD free?

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

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

CAR OBD is rated higher. PairMyKey averages 4.1 out of 5 from 282 ratings, while CAR OBD averages 5.0 from 1 ratings.

### Do PairMyKey or CAR OBD have ads?

Neither PairMyKey nor CAR OBD shows ads.

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

PairMyKey ships an update weekly, and CAR OBD every 6 weeks. Most recently, PairMyKey was updated on September 21, 2026 and CAR OBD on August 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*