Comparison

Device Detector vs Sentry by RF Code

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Device Detector

Scan and analyze all devices connected to your local network. This essential tool helps protect your privacy by identifying everything on your network. Regular updates ensure an improved user experience.

Highlights
  • Scan local network
  • Analyze connected devices
  • Privacy protection
  • Regular updates
Features
Read full description

This is a tool to scan and analyze all devices on your local network. It is an essential app to protect your privacy. We will regularly update the app to improve your experience.

About

Sentry by RF Code

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
Read full description

Know what’s going on in your remote IT spaces without having to be on-site. Sentry is constantly monitoring unmanned, remote IT environments so you don’t have to. With deep intelligence and real-time alerts, Sentry makes it easier to prevent, thwart, or remediate costly IT situations. Key Features: * Critical Asset Visibility: Get live and recorded video monitoring of all your remote IT environments from anywhere at any time. * Thermal Monitoring: Sentry tracks temperature activity. Thermal sensors monitor temperature fluctuations, pinpoint hot spots, and alert you of any spikes. * Failure-Tolerant Connection: With a backup battery, Sentry stays up and running to give you uninterrupted visibility in the face of power failure or an area-wide outage. * Automated, Real-Time Alerts: When something goes wrong, you need to know. Sentry will send an alert when it detects a threat to your remote IT environment. https://www.rfcode.com/sentry

Screenshots

Device Detector3 screens
Sentry by RF Code4 screens

Verdict

The call

The clearest difference is rating: Sentry by RF Code at 5.0 against Device Detector's 4.4. Sentry by RF Code also leads on ads (none vs shown) and monetization model (free vs ad-supported). Device Detector's advantage is update cadence (monthly vs every 7 months) and ratings volume (3.6K vs 3). On price, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Sentry by RF Code holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Device Detector has 3.6K ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Device Detector ships an update monthly, Sentry by RF Code every 7 months. The most recent releases landed on October 6, 2026 and September 15, 2026 respectively.

Scorecard6 real differences · 4 level
Device Detector versus Sentry by RF Code: the parameters behind the verdict, then further details
ParameterDevice DetectorSentry by RF Code
PriceFreeFree
Rating4.4 (3.6K ratings)5.0 (3 ratings) — better
Positive reviews48.9% of reviews—
Number of ratings3.6K — better3
Update frequencyMonthly — betterEvery 7 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size44 MB11 MB
Age rating4+4+
Developer长金 胡RF Code, Inc.

Customer experience

Device Detector

All ratings3,572 ratings
Positive86.8%
Neutral3.8%
Negative9.4%
Written reviews237 reviews
Positive48.9%
Neutral3.4%
Negative47.7%

Sentry by RF Code

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Device Detector

Reported bugs

3 issues
  • Inconsistent network connectivity detection
  • Crashes and freezes during scans
  • Incorrect device identification in some cases

Requested features

4 requests
  • Improve device identification and location details
  • Provide more context on suspicious devices
  • Offer ad-free or paid version to remove ads
  • Add support for more device types and manufacturers

Sentry by RF Code

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Device Detector

No in-app purchases

None

Sentry by RF Code

No in-app purchases

Questions

Is Device Detector free?
Device Detector is free to download, with no in-app purchases.
Is Sentry by RF Code free?
Sentry by RF Code is free to download, with no in-app purchases.
Which has better reviews, Device Detector or Sentry by RF Code?
Sentry by RF Code is rated higher. Device Detector averages 4.4 out of 5 from 3.6K ratings, while Sentry by RF Code averages 5.0 from 3 ratings.
Do Device Detector or Sentry by RF Code have ads?
Device Detector shows ads; Sentry by RF Code does not.
Which is updated more often, Device Detector or Sentry by RF Code?
Device Detector ships an update monthly, and Sentry by RF Code every 7 months. Most recently, Device Detector was updated on October 6, 2026 and Sentry by RF Code on September 15, 2026.

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