Comparison

Sentry by RF Code vs PromptSentry

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

Head to head
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

About

PromptSentry

Features
Read full description

Detect hidden instructions in documents and images before they manipulate your AI tools. PromptSentry reviews business documents, PDFs, DOCX files, images and pasted text for prompt injection, jailbreak attempts, hidden text and encoded directions that could change how an AI assistant, agent or internal tool responds. Use PromptSentry before uploading or pasting outside content into AI. It helps you catch unsafe AI instructions in contracts, resumes, invoices, vendor files, support tickets, policies, client material, research and internal knowledge base content. Use PromptSentry for: - Business AI safety checks - Document review before using AI tools - Vendor and client document screening - Contract, invoice, resume and support ticket review - Data privacy workflows for sensitive content - Teams using AI assistants, agents, RAG systems and internal tools What you get: - Fast Safe, Suspicious or Dangerous result - Plain-language risk notes - Confidence and source context - Scan history for follow-up review - Adjustable sensitivity for your workflow - Private on-device scanning PromptSentry works as an AI scanner, file scanner and document review tool for professionals who need a simple AI security checkpoint between untrusted content and business AI workflows. Scan first, understand the risk, then decide whether to upload, edit or block the file. PromptSentry supports safer AI work without slowing down your team. PromptSentry is an assistive security tool. Detection is probabilistic and should be used as one layer of your review process.

Screenshots

Sentry by RF Code4 screens
PromptSentry4 screens

Verdict

The call

The clearest difference is in-app purchases: Sentry by RF Code at none against PromptSentry's 1. Sentry by RF Code also leads on iOS requirement (15.0 vs 26.4). PromptSentry's advantage is update cadence (every 5 days 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PromptSentry sells 1 one-off in-app purchase. Sentry by RF Code asks for nothing beyond the download.

UpkeepUpdate frequency

Sentry by RF Code ships an update every 7 months, PromptSentry every 5 days. The most recent releases landed on October 3, 2026 and September 27, 2026 respectively.

Scorecard3 real differences · 6 level
Sentry by RF Code versus PromptSentry: the parameters behind the verdict, then further details
ParameterSentry by RF CodePromptSentry
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 7 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.4
Further details — not scored
Size11 MB378 MB
Age rating4+4+
DeveloperRF Code, Inc.TOLGA BARIS KOC

In-app purchases

None

Sentry by RF Code

No in-app purchases

1 purchases

PromptSentry

One-time1
  • PromptSentry Ultra$8.99

Questions

Is Sentry by RF Code free?
Sentry by RF Code is free to download, with no in-app purchases.
Is PromptSentry free?
PromptSentry is free to download, with in-app purchases available.
Do Sentry by RF Code or PromptSentry have ads?
Neither Sentry by RF Code nor PromptSentry shows ads.
Which is updated more often, Sentry by RF Code or PromptSentry?
Sentry by RF Code ships an update every 7 months, and PromptSentry every 5 days. Most recently, Sentry by RF Code was updated on October 3, 2026 and PromptSentry on September 27, 2026.

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