# CAR OBD vs Tap2Lock

The clearest difference is in-app purchases: Tap2Lock at none against CAR OBD's 5. CAR OBD's advantage is update cadence (every 6 weeks vs every 8 months). 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. Tap2Lock asks for nothing beyond the download.

CAR OBD ships an update every 6 weeks, Tap2Lock every 8 months. The most recent releases landed on August 2, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | CAR OBD | Tap2Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/car-obd/id6470771313/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 162 MB |
| Requires iOS | 13 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Dongguan Shendu Research Intelligent Technology Co., Ltd.](https://appshunter.io/developer/1827187525) | [Lock Labs, Inc.](https://appshunter.io/developer/1521325322) |

## What reviewers say

### 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 |


### Tap2Lock

[App page](https://appshunter.io/ios/app/tap2lock/id6754315804)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CAR OBD free?

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

### Is Tap2Lock free?

Tap2Lock is free to download, with no in-app purchases.

### Do CAR OBD or Tap2Lock have ads?

Neither CAR OBD nor Tap2Lock shows ads.

### Which is updated more often, CAR OBD or Tap2Lock?

CAR OBD ships an update every 6 weeks, and Tap2Lock every 8 months. Most recently, CAR OBD was updated on August 2, 2026 and Tap2Lock on September 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.*