# Eventor Event Manager vs ChkOBD OBD2 Analyzer

The clearest difference is in-app purchases: Eventor Event Manager at none against ChkOBD OBD2 Analyzer's 4. ChkOBD OBD2 Analyzer's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

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

Eventor Event Manager ships an update every 2 months, ChkOBD OBD2 Analyzer every 3 months. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Eventor Event Manager | ChkOBD OBD2 Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (4 ratings)](https://appshunter.io/ios/app/chkobd-obd2-analyzer/id1511585011/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 57 MB | 63 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David Padych](https://appshunter.io/developer/1497524852) | [Check On-Board Diagnostics LLC](https://appshunter.io/developer/1511585010) |

## What reviewers say

### Eventor Event Manager

[App page](https://appshunter.io/ios/app/eventor-event-manager/id1497524853)

**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 Eventor Event Manager free?

Eventor Event Manager 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.

### Do Eventor Event Manager or ChkOBD OBD2 Analyzer have ads?

Neither Eventor Event Manager nor ChkOBD OBD2 Analyzer shows ads.

### Which is updated more often, Eventor Event Manager or ChkOBD OBD2 Analyzer?

Eventor Event Manager ships an update every 2 months, and ChkOBD OBD2 Analyzer every 3 months. Most recently, Eventor Event Manager was updated on October 5, 2026 and ChkOBD OBD2 Analyzer on October 13, 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.*