# RF Signal Detector vs Sentry Shield

The clearest difference is in-app purchases: Sentry Shield at none against RF Signal Detector's 4. Sentry Shield also leads on ads (none vs shown). RF Signal Detector's advantage is iOS requirement (16.0 vs 18.5). On price and device support there is nothing between them.

Both are free to download. RF Signal Detector sells 4 in-app purchases, starting at $8.99 per 7 days. Sentry Shield asks for nothing beyond the download.

## The numbers

| Metric | RF Signal Detector | Sentry Shield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (104 ratings)](https://appshunter.io/ios/app/rf-signal-detector/id6757208480/reviews)** | — |
| Number of ratings | **104** | — |
| Positive reviews | 11.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Monetization | Freemium | — |
| Size | 60 MB | 4 MB |
| Requires iOS | **16.0** | 18.5 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NEURASYNC](https://appshunter.io/developer/1639101560) | [Sentry Security](https://appshunter.io/developer/6772048299) |

## What reviewers say

### RF Signal Detector

[App page](https://appshunter.io/ios/app/rf-signal-detector/id6757208480)

This application offers real-time radio frequency signal detection and analysis. It monitors signal strength, analyzes frequency bands, and identifies interference sources. The tool provides historical data and network optimization insights for a better wireless experience.

**Highlights:** Real-time signal monitoring, Frequency band analysis (2.4 GHz & 5 GHz), Interference detection and categorization, Signal history tracking, Accurate dBm measurements, Network optimization insights

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RF Signal Detector Weekly Sub | $8.99 | per 7 days |
| RF Signal Detector Yearly Access | $35.99 | per year |
| RF Signal Detector Annual Access | $49.99 | per year |
| RF Signal Detector Lifetime | $29.99 | one-time |


### Sentry Shield

[App page](https://appshunter.io/ios/app/sentry-shield/id6772048297)

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

**In-app purchases:** none


## Frequently asked questions

### Is RF Signal Detector free?

RF Signal Detector is free to download, with in-app purchases available.

### Is Sentry Shield free?

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

### Do RF Signal Detector or Sentry Shield have ads?

RF Signal Detector shows ads; Sentry Shield does not.

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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.*