iService/ DeviceOn vs PromptSentry
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
iService/ DeviceOn
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iService/DeviceOn is an application that enables users to remotely manage devices and monitor their status, providing instant access to the latest device information.
PromptSentry
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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
Verdict
The clearest difference is in-app purchases: iService/ DeviceOn at none against PromptSentry's 1. iService/ DeviceOn also leads on iOS requirement (15.6 vs 26.4). PromptSentry's advantage is update cadence (every 5 days vs every 4 months). On price, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. PromptSentry sells 1 one-off in-app purchase. iService/ DeviceOn asks for nothing beyond the download.
iService/ DeviceOn ships an update every 4 months, PromptSentry every 5 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.
| Parameter | iService/ DeviceOn | PromptSentry |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 5 days โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 โ better | 26.4 |
| Further details โ not scored | ||
| Size | 27 MB | 378 MB |
| Age rating | 17+ | 4+ |
| Developer | Advantech Co., Ltd. | TOLGA BARIS KOC |
In-app purchases
iService/ DeviceOn
No in-app purchases
PromptSentry
- PromptSentry Ultra$8.99
Questions
Is iService/ DeviceOn free?
Is PromptSentry free?
Do iService/ DeviceOn or PromptSentry have ads?
Which is updated more often, iService/ DeviceOn or PromptSentry?
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