# BAS2 RRC vs CAR OBD

The clearest difference is review sentiment: BAS2 RRC at 100% against CAR OBD's 0%. BAS2 RRC also leads on in-app purchases (none vs 5) and iOS requirement (9.0 vs 13). CAR OBD's advantage is update cadence (every 6 weeks vs every 47 months). On price, ads and device support there is nothing between them.

Both are free to download. CAR OBD sells 5 one-off in-app purchases. BAS2 RRC asks for nothing beyond the download.

BAS2 RRC ships an update every 47 months, CAR OBD every 6 weeks. The most recent releases landed on October 7, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | BAS2 RRC | CAR OBD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/car-obd/id6470771313/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 15 MB |
| Requires iOS | **9.0** | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bell Auto Services Ltd](https://appshunter.io/developer/791753350) | [Dongguan Shendu Research Intelligent Technology Co., Ltd.](https://appshunter.io/developer/1827187525) |

## What reviewers say

### BAS2 RRC

[App page](https://appshunter.io/ios/app/bas2-rrc/id994176921)

Control an engine diagnostic tool for CAN-based cars. Read and clear fault codes, view live engine data graphically or numerically, and perform ECU service tests. Access ECU information and more through your iPhone or iPad.

**Highlights:** Fault code reading and clearing, Engine live data (numerical/graphical), ECU service tests, ECU information, Bluetooth Smart control

**Features:** macOS Compatibility

**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, Vision Pro support

**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 BAS2 RRC free?

BAS2 RRC is free to download, with no in-app purchases.

### Is CAR OBD free?

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

### Do BAS2 RRC or CAR OBD have ads?

Neither BAS2 RRC nor CAR OBD shows ads.

### Which is updated more often, BAS2 RRC or CAR OBD?

BAS2 RRC ships an update every 47 months, and CAR OBD every 6 weeks. Most recently, BAS2 RRC was updated on October 7, 2026 and CAR OBD on September 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.*