# OBD Compass vs Prospero Mobile

The clearest difference is update cadence: Prospero Mobile at weekly against OBD Compass's monthly. OBD Compass's advantage is iOS requirement (13.0 vs 16.4). 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, Prospero Mobile weekly. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | OBD Compass | Prospero Mobile |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 25 MB | 60 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) | [Career Team](https://appshunter.io/developer/1843665913) |

## 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


### Prospero Mobile

[App page](https://appshunter.io/ios/app/prospero-mobile/id6761719288)

**In-app purchases:** none


## Frequently asked questions

### Is OBD Compass free?

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

### Is Prospero Mobile free?

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

### Do OBD Compass or Prospero Mobile have ads?

Neither OBD Compass nor Prospero Mobile shows ads.

### Which is updated more often, OBD Compass or Prospero Mobile?

OBD Compass ships an update monthly, and Prospero Mobile weekly. Most recently, OBD Compass was updated on October 14, 2026 and Prospero Mobile on October 15, 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.*