# ChkOBD OBD2 Analyzer vs OBD Connect

The clearest difference is price: ChkOBD OBD2 Analyzer at Free against OBD Connect's $9.99. OBD Connect's advantage is rating (3.9 vs 3.0) and in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

ChkOBD OBD2 Analyzer is free to download; OBD Connect costs $9.99 up front. ChkOBD OBD2 Analyzer sells 4 in-app purchases, starting at $4.99 per month. OBD Connect asks for nothing beyond the download.

OBD Connect holds the better App Store score, 3.9 against 3.0. That said, the two scores are not equally well evidenced: OBD Connect has 57 ratings behind it against 4, so its average is the more settled of the two.

ChkOBD OBD2 Analyzer ships an update every 3 months, OBD Connect weekly. The most recent releases landed on October 13, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ChkOBD OBD2 Analyzer | OBD Connect |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/chkobd-obd2-analyzer/id1511585011/reviews) | **[3.9 (57 ratings)](https://appshunter.io/ios/app/obd-connect/id1518497239/reviews)** |
| Number of ratings | 4 | **57** |
| Positive reviews | — | 31.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#106** |
| Size | 63 MB | 21 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Check On-Board Diagnostics LLC](https://appshunter.io/developer/1511585010) | [Alphabit Software Inc.](https://appshunter.io/developer/702178534) |

## What reviewers say

### 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 |


### OBD Connect

[App page](https://appshunter.io/ios/app/obd-connect/id1518497239)

**Currently charting:** #106 Top Paid · Utilities (US App Store)

Monitor your car's performance in real-time with virtual gauges and graphs. Diagnose and clear trouble codes to understand vehicle malfunctions before visiting a mechanic. Track fuel economy to save on gas.

**Highlights:** Real-time performance monitoring, Trouble code reading and clearing, Fuel economy tracking, Customizable gauges and graphs, Car profiles and settings, Race track data and drag times

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChkOBD OBD2 Analyzer free?

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

### Is OBD Connect free?

OBD Connect costs $9.99, with no in-app purchases.

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

OBD Connect is rated higher. ChkOBD OBD2 Analyzer averages 3.0 out of 5 from 4 ratings, while OBD Connect averages 3.9 from 57 ratings.

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

Neither ChkOBD OBD2 Analyzer nor OBD Connect shows ads.

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

ChkOBD OBD2 Analyzer ships an update every 3 months, and OBD Connect weekly. Most recently, ChkOBD OBD2 Analyzer was updated on October 13, 2026 and OBD Connect on October 27, 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.*