# RC Sentinel vs RDBK

The clearest difference is iOS requirement: RDBK at 15.0 against RC Sentinel's 18.2. 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.

## The numbers

| Metric | RC Sentinel | RDBK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Size | 33 MB | 67 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Richard Vetter](https://appshunter.io/developer/1760073569) | [Alvaro Franz](https://appshunter.io/developer/6785947812) |

## What reviewers say

### RC Sentinel

[App page](https://appshunter.io/ios/app/rc-sentinel/id6760380543)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### RDBK

[App page](https://appshunter.io/ios/app/rdbk/id6787167327)

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

**In-app purchases:** none


## Frequently asked questions

### Is RC Sentinel free?

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

### Is RDBK free?

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

### Do RC Sentinel or RDBK have ads?

Neither RC Sentinel nor RDBK shows ads.

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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.*