Sentry by RF Code vs RF 4DAT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Real-time video monitoring
- Thermal activity tracking
- Automated threat alerts
- Failure-tolerant connection
- Critical asset visibility
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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
RF 4DAT
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RF 4DAT helps you understand how much RF activity is around you using on-device Bluetooth scanning. See live device counts, review history by location, and keep it all in clear, simple screens. RF 4DAT is free to download, and scanning is free forever. Free features: - Live RF device counts with manual scan control - Location-tagged history (manual or auto-detected) - Protect: a curated guide to RF detection, measurement, and shielding gear - Legal and ethical use guidance built in RF 4DAT Pro (one-time in-app purchase): - Trends: averages, recent changes, most-scanned places, and common devices - CSV export of your scan history Bought RF 4DAT when it was a paid app? Pro is included automatically — there is nothing to buy again. Tap Restore Purchases in Settings if it doesn't appear. Privacy: the 4DAT method Your scans stay on your device. RF 4DAT does not collect, sell, or share your data, and there is no analytics or tracking. Location, when you allow it, is used on-device only to label a scan with a place name; coordinates are never stored. Please use RF 4DAT only where you have permission and legal authority. It is not for stalking, covert surveillance, or identifying people. Device counts are estimates of nearby signals, not identifications of individuals. As an Amazon Associate, RF 4DAT earns from qualifying purchases made through links in the Protect tab. Prices and availability are set by Amazon.
Screenshots
Verdict
The clearest difference is in-app purchases: Sentry by RF Code at none against RF 4DAT's 1. Sentry by RF Code also leads on iOS requirement (15.0 vs 17.0). RF 4DAT's advantage is update cadence (every 3 months vs every 7 months). On price, ads 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
Both are free to download. RF 4DAT sells 1 one-off in-app purchase. Sentry by RF Code asks for nothing beyond the download.
Sentry by RF Code ships an update every 7 months, RF 4DAT every 3 months. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.
| Parameter | Sentry by RF Code | RF 4DAT |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | RF Code, Inc. | 4DAT LLC |
In-app purchases
Sentry by RF Code
No in-app purchases
RF 4DAT
- RF 4DAT Pro$2.99
Questions
Is Sentry by RF Code free?
Is RF 4DAT free?
Do Sentry by RF Code or RF 4DAT have ads?
Which is updated more often, Sentry by RF Code or RF 4DAT?
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