# CDR Pro vs FOUR Carpool

The clearest difference is update cadence: FOUR Carpool at every 3 days against CDR Pro's monthly. CDR Pro's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

CDR Pro ships an update monthly, FOUR Carpool every 3 days. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | CDR Pro | FOUR Carpool |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 47 MB | 48 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [aircargobook GmbH](https://appshunter.io/developer/903808293) | [Manish Kalal](https://appshunter.io/developer/1704610339) |

## What reviewers say

### CDR Pro

[App page](https://appshunter.io/ios/app/cdr-pro/id1488124338)

**Features:** macOS Compatibility

**In-app purchases:** none


### FOUR Carpool

[App page](https://appshunter.io/ios/app/four-carpool/id6759831653)

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

**In-app purchases:** none


## Frequently asked questions

### Is CDR Pro free?

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

### Is FOUR Carpool free?

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

### Do CDR Pro or FOUR Carpool have ads?

Neither CDR Pro nor FOUR Carpool shows ads.

### Which is updated more often, CDR Pro or FOUR Carpool?

CDR Pro ships an update monthly, and FOUR Carpool every 3 days. Most recently, CDR Pro was updated on October 2, 2026 and FOUR Carpool on October 10, 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.*