# Sentry by RF Code vs RF Signal Detector

The clearest difference is rating: Sentry by RF Code at 5.0 against RF Signal Detector's 4.3. Sentry by RF Code also leads on in-app purchases (none vs 4) and ads (none vs shown). RF Signal Detector's advantage is update cadence (monthly vs every 7 months) and ratings volume (91 vs 3). On price and iOS requirement 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 by RF Code asks for nothing beyond the download.

Sentry by RF Code holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: RF Signal Detector has 91 ratings behind it against 3, so its average is the more settled of the two.

Sentry by RF Code ships an update every 7 months, RF Signal Detector monthly. The most recent releases landed on September 15, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Sentry by RF Code | RF Signal Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sentry-by-rf-code/id1645683076/reviews)** | [4.3 (91 ratings)](https://appshunter.io/ios/app/rf-signal-detector/id6757208480/reviews) |
| Number of ratings | 3 | **91** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | **Free** | Freemium |
| Size | 11 MB | 60 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [RF Code, Inc.](https://appshunter.io/developer/732245715) | [NEURASYNC](https://appshunter.io/developer/1639101560) |

## What reviewers say

### Sentry by RF Code

[App page](https://appshunter.io/ios/app/sentry-by-rf-code/id1645683076)

Continuously monitors remote IT environments, providing real-time video and thermal data. Receive automated alerts for potential threats to prevent costly IT issues.

**Highlights:** Real-time video monitoring, Thermal activity tracking, Automated threat alerts, Failure-tolerant connection, Critical asset visibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Sentry by RF Code free?

Sentry by RF Code is free to download, with no in-app purchases.

### Is RF Signal Detector free?

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

### Which has better reviews, Sentry by RF Code or RF Signal Detector?

Sentry by RF Code is rated higher. Sentry by RF Code averages 5.0 out of 5 from 3 ratings, while RF Signal Detector averages 4.3 from 91 ratings.

### Do Sentry by RF Code or RF Signal Detector have ads?

RF Signal Detector shows ads; Sentry by RF Code does not.

### Which is updated more often, Sentry by RF Code or RF Signal Detector?

Sentry by RF Code ships an update every 7 months, and RF Signal Detector monthly. Most recently, Sentry by RF Code was updated on September 15, 2026 and RF Signal Detector on September 17, 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.*