# Mobilscan OBD vs ChkOBD OBD2 Analyzer

The clearest difference is rating: ChkOBD OBD2 Analyzer at 3.0 against Mobilscan OBD's 1.5. Mobilscan OBD's advantage is in-app purchases (none vs 4) and iOS requirement (10.0 vs 13.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. ChkOBD OBD2 Analyzer sells 4 in-app purchases, starting at $4.99 per month. Mobilscan OBD asks for nothing beyond the download.

ChkOBD OBD2 Analyzer holds the better App Store score, 3.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

Mobilscan OBD ships an update every 2 months, ChkOBD OBD2 Analyzer every 3 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Mobilscan OBD | ChkOBD OBD2 Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/mobilscan-obd/id537319734/reviews) | **[3.0 (4 ratings)](https://appshunter.io/ios/app/chkobd-obd2-analyzer/id1511585011/reviews)** |
| Number of ratings | 2 | **4** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 63 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mobilscan](https://appshunter.io/developer/537319737) | [Check On-Board Diagnostics LLC](https://appshunter.io/developer/1511585010) |

## What reviewers say

### Mobilscan OBD

[App page](https://appshunter.io/ios/app/mobilscan-obd/id537319734)

This app connects to your vehicle's OBD system via a WiFi adapter to display sensor data and diagnostic trouble codes. It includes a simulator for testing functionality without a physical connection.

**Highlights:** Retrieves sensor values, Displays fault codes, OBD WiFi adapter communication, Built-in vehicle simulator, Supports OBD-compliant vehicles

**Features:** macOS Compatibility

**In-app purchases:** none


### ChkOBD OBD2 Analyzer

[App page](https://appshunter.io/ios/app/chkobd-obd2-analyzer/id1511585011)

Connect your iPhone or iPad to your car's engine to view vital data. Access basic engine values for free, with in-app purchases for advanced diagnostics, smog check readiness, VIN analysis, and error decoding.

**Highlights:** View engine values, In-app purchase for advanced data, Smog Check Assistant, VIN Analyzer, Error Decoder and Reset, Bluetooth adapter compatibility check

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smog Check Assistant | $4.99 | per month |
| VIN Analyzer | $1.99 | one-time |
| Error Analyzer | $2.99 | one-time |
| Advance Engine Values | $4.99 | one-time |


## Frequently asked questions

### Is Mobilscan OBD free?

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

### Is ChkOBD OBD2 Analyzer free?

ChkOBD OBD2 Analyzer is free to download, with in-app purchases available.

### Which has better reviews, Mobilscan OBD or ChkOBD OBD2 Analyzer?

ChkOBD OBD2 Analyzer is rated higher. Mobilscan OBD averages 1.5 out of 5 from 2 ratings, while ChkOBD OBD2 Analyzer averages 3.0 from 4 ratings.

### Do Mobilscan OBD or ChkOBD OBD2 Analyzer have ads?

Neither Mobilscan OBD nor ChkOBD OBD2 Analyzer shows ads.

### Which is updated more often, Mobilscan OBD or ChkOBD OBD2 Analyzer?

Mobilscan OBD ships an update every 2 months, and ChkOBD OBD2 Analyzer every 3 months. Most recently, Mobilscan OBD was updated on November 6, 2026 and ChkOBD OBD2 Analyzer on November 3, 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.*