# Sentry by RF Code vs Tracking Device Detector

The clearest difference is in-app purchases: Sentry by RF Code at none against Tracking Device Detector's 2. Sentry by RF Code also leads on rating (5.0 vs 4.8) and device support (3 vs 1). Tracking Device Detector's advantage is update cadence (every 3 weeks vs every 7 months) and ratings volume (338 vs 3). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Tracking Device Detector sells 2 in-app purchases, starting at $9.99 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 4.8. That said, the two scores are not equally well evidenced: Tracking Device Detector has 338 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, Tracking Device Detector every 3 weeks. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sentry by RF Code | Tracking Device Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sentry-by-rf-code/id1645683076/reviews)** | [4.8 (338 ratings)](https://appshunter.io/ios/app/tracking-device-detector-ble/id6748611590/reviews) |
| Number of ratings | 3 | **338** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 1 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [RF Code, Inc.](https://appshunter.io/developer/732245715) | [Samuel Ippisch](https://appshunter.io/developer/1766642673) |

## 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


### Tracking Device Detector

[App page](https://appshunter.io/ios/app/tracking-device-detector-ble/id6748611590)

Discover hidden Bluetooth devices that may be tracking your location. This app scans for unknown signals, identifies risks, and helps you locate them using real-time signal strength. Stay informed about unwanted Bluetooth monitoring to protect your privacy and security.

**Highlights:** Scan for unknown Bluetooth signals, Identify potential tracking devices, Locate devices with signal strength, Real-time proximity alerts, Distance estimation, Privacy and security protection

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $9.99 | per 7 days |
| Yearly Pro / 1 Week Free Trial | $39.99 | per year |


## Frequently asked questions

### Is Sentry by RF Code free?

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

### Is Tracking Device Detector free?

Tracking Device Detector is free to download, with in-app purchases available.

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

Sentry by RF Code is rated higher. Sentry by RF Code averages 5.0 out of 5 from 3 ratings, while Tracking Device Detector averages 4.8 from 338 ratings.

### Do Sentry by RF Code or Tracking Device Detector have ads?

Neither Sentry by RF Code nor Tracking Device Detector shows ads.

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

Sentry by RF Code ships an update every 7 months, and Tracking Device Detector every 3 weeks. Most recently, Sentry by RF Code was updated on October 19, 2026 and Tracking Device Detector on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*