Sentinel vs LensSweep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sentinel
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Sentinel is the fastest way to find, activate, and configure IP security cameras and recorders — right from your iPhone, iPad, or Mac. Built for installers, integrators, and IT teams, Sentinel replaces the clunky desktop-only vendor tools with a modern app that just works on the equipment already in your pocket. DISCOVER EVERYTHING ON THE NETWORK • Finds ONVIF and SADP (Hikvision-compatible) devices in seconds • Uses standard multicast, so it sees devices even when their IP is outside your current subnet • Live results as devices respond — no manual refresh • Shows model, firmware, MAC, serial, and current network settings at a glance ACTIVATE NEW DEVICES IN SECONDS • Bring brand-new, uninitialized cameras online without a laptop or serial cable • Set a strong admin password with a built-in strength meter • Encrypted activation handled securely on device RECONFIGURE THE NETWORK, ON SITE • Change a device's IP address, subnet mask, and gateway • Switch between static IP and DHCP • Fix a misconfigured camera without unplugging or factory resets • Note: discovery works across subnets, but changing settings or activating a device requires being on the same subnet as it SECURE BY DESIGN • Credentials stored in the iOS/macOS Keychain — never in plain text • Password policy enforcement to keep every device hardened • Read-only ONVIF discovery; changes are explicit and deliberate WORKS WHERE YOU DO • Native SwiftUI app for iPhone, iPad, and Mac • Clean, fast interface designed for the field • Built-in troubleshooting guidance when a device won't appear WHY SENTINEL Commissioning a site used to mean dragging a laptop up a ladder, hunting for a serial cable, and juggling one clunky utility per brand. Sentinel puts discovery, activation, and network configuration in a single app that fits in your pocket — so you can walk a site, bring devices online, and hand off a hardened, correctly-addressed network before you pack up. IMPORTANT Sentinel requires Local Network permission to discover devices. On iOS this is requested on first scan — please allow it, or scanning cannot work. Sentinel is an independent tool and is not affiliated with, or endorsed by, any camera manufacturer. ONVIF is a trademark of the ONVIF consortium. Free to try for 30 days, then a one-time $0.99 purchase https://www.6tsevn.com/sentinel/terms https://www.6tsevn.com/sentinel/privacy
LensSweep
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LensSweep gives you a structured way to inspect an unfamiliar room using signals your iPhone can observe—without creating an account or uploading room imagery. FOUR INDEPENDENT INSPECTION TOOLS • Optical scan highlights bright, stable reflection candidates in the live camera view. Every candidate still needs visual verification. • Nearby scan reviews Bonjour service advertisements on the local network and foreground Bluetooth Low Energy advertisements. Device names and metadata are self-advertised and do not prove what a device is. • Magnetic field meter shows relative changes after a local calibration. Metal, magnets, electronics, wiring, cases, appliances, movement, and phone orientation can all affect the reading. • Room guide walks you through power sources, sight lines, and common places that deserve a closer physical check. PRIVATE BY DESIGN • Processing happens on your device. • No account, advertising, analytics, or tracking. • No automatic upload. • Camera frames and continuous magnetic readings are not saved in report history. • Save or export a text report only when you choose. • Delete report history at any time. EXPLAINABLE RESULTS LensSweep keeps optical candidates, nearby advertisements, magnetic measurements, and checklist observations separate. It does not hide disagreement inside a single risk score. Saved reports explain what was observed, where the information came from, and what you can check next. IMPORTANT LIMITATIONS LensSweep is an inspection aid, not a safety certification. A reflection, nearby advertisement, or magnetic-field change is not proof of a hidden camera. Offline, wired, silent, concealed, or remote-network devices may not appear. A clean scan cannot prove that a room is camera-free. If you have a serious safety concern, do not rely on an app alone. Leave the area when appropriate and contact the property operator or relevant local authority. Privacy Policy: https://docs.google.com/document/d/1kS2lV1a50JrbAeh38E0IyxgkOXyl0fg_UuEiodko9mQ Terms of Use: https://docs.google.com/document/d/1qBNNj81KSpZhjlPNu7YmIo3RYFzNaauAxVkL_d4BbuA
Screenshots
Verdict
The clearest difference is in-app purchases: LensSweep at none against Sentinel's 1. LensSweep also leads on iOS requirement (17.0 vs 26.0). 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. Sentinel sells 1 one-off in-app purchase. LensSweep asks for nothing beyond the download.
| Parameter | Sentinel | LensSweep |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | 6tSevn BV | Vanessa Pavel |
In-app purchases
Sentinel
- Keep Full Access$0.99
LensSweep
No in-app purchases









