# CodeREADr KEY vs SilenceMonitor

The clearest difference is iOS requirement: SilenceMonitor at 9.0 against CodeREADr KEY's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CodeREADr KEY ships an update every 4 months, SilenceMonitor every 3 months. The most recent releases landed on October 18, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | CodeREADr KEY | SilenceMonitor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 79 MB | 20 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CodeREADr Inc](https://appshunter.io/developer/1742245227) | [Barix AG](https://appshunter.io/developer/476014844) |

## What reviewers say

### CodeREADr KEY

[App page](https://appshunter.io/ios/app/codereadr-key-scan-to-field/id1414948606)

**In-app purchases:** none


### SilenceMonitor

[App page](https://appshunter.io/ios/app/silencemonitor/id1473639314)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CodeREADr KEY free?

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

### Is SilenceMonitor free?

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

### Do CodeREADr KEY or SilenceMonitor have ads?

Neither CodeREADr KEY nor SilenceMonitor shows ads.

### Which is updated more often, CodeREADr KEY or SilenceMonitor?

CodeREADr KEY ships an update every 4 months, and SilenceMonitor every 3 months. Most recently, CodeREADr KEY was updated on October 18, 2026 and SilenceMonitor on October 4, 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.*