# OBD Compass vs ShellMan

The clearest difference is update cadence: ShellMan at fortnightly against OBD Compass's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OBD Compass ships an update monthly, ShellMan fortnightly. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | OBD Compass | ShellMan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 25 MB | 16 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) | [Lars Roth](https://appshunter.io/developer/1849876524) |

## 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


### ShellMan

[App page](https://appshunter.io/ios/app/shellman/id6763914321)

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

**In-app purchases:** none


## Frequently asked questions

### Is OBD Compass free?

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

### Is ShellMan free?

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

### Do OBD Compass or ShellMan have ads?

Neither OBD Compass nor ShellMan shows ads.

### Which is updated more often, OBD Compass or ShellMan?

OBD Compass ships an update monthly, and ShellMan fortnightly. Most recently, OBD Compass was updated on September 23, 2026 and ShellMan on September 14, 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.*