# OBD Compass vs Car Scanner ELM OBD2

The clearest difference is in-app purchases: OBD Compass at none against Car Scanner ELM OBD2's 7. OBD Compass also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.6). Car Scanner ELM OBD2's advantage is update cadence (every 3 days vs monthly). On price and device support there is nothing between them.

Both are free to download. Car Scanner ELM OBD2 sells 7 in-app purchases, starting at $6.99 per 7 days. OBD Compass asks for nothing beyond the download.

OBD Compass ships an update monthly, Car Scanner ELM OBD2 every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | OBD Compass | Car Scanner ELM OBD2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (18 ratings)](https://appshunter.io/ios/app/car-scanner-elm-obd2-torque/id6758354086/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 55 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) | [SINAN ATAKUL](https://appshunter.io/developer/1872496443) |

## What reviewers say

### OBD Compass

[App page](https://appshunter.io/ios/app/obd-compass/id6758076036)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Car Scanner ELM OBD2

[App page](https://appshunter.io/ios/app/car-scanner-elm-obd2-torque/id6758354086)

Transform your iPhone into a powerful car diagnostic tool. Read and clear trouble codes, monitor live vehicle sensor data, and understand check engine light warnings. Works with most vehicles manufactured since 1996 using standard OBD2 adapters.

**Highlights:** Read and clear OBD2 trouble codes, Understand check engine light warnings, Monitor live vehicle sensor data, Supports most vehicles since 1996, Fast setup with ELM327 adapters, Avoid guesswork and costly surprises

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Car Scanner Pro - Obd2 ELM Weekly | $6.99 | per 7 days |
| Car Scanner Pro Weekly | $9.99 | per 7 days |
| Car Scanner Pro -Diagnostic Monthly | $14.99 | per month |
| Car Scanner - Obd2 Special Offer | $34.99 | per year |
| Car Scanner Special Offer | $49.99 | per year |
| Car Scanner Pro Annual All Brands | $69.99 | per year |
| Car Scanner Pro Annual | $99.99 | per year |


## Frequently asked questions

### Is OBD Compass free?

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

### Is Car Scanner ELM OBD2 free?

Car Scanner ELM OBD2 is free to download, with in-app purchases available.

### Do OBD Compass or Car Scanner ELM OBD2 have ads?

Car Scanner ELM OBD2 shows ads; OBD Compass does not.

### Which is updated more often, OBD Compass or Car Scanner ELM OBD2?

OBD Compass ships an update monthly, and Car Scanner ELM OBD2 every 3 days. Most recently, OBD Compass was updated on October 31, 2026 and Car Scanner ELM OBD2 on October 31, 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.*