IP Scanner & Service Watcher vs Sentinel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IP Scanner & Service Watcher
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IP Scanner & Service Watcher is a field toolkit for IT support engineers, network administrators, CCTV/camera technicians, and home lab users. Diagnose the network you are connected to, discover LAN devices, check open ports, inspect TLS certificates, resolve DNS, run ping/traceroute, and watch important services from your phone. KEY FEATURES - LAN discovery: scan the current subnet or a custom CIDR/IP range and review device IP, MAC, vendor, online/offline state, and open-port status. - Port scanning: use focused profiles for IT, servers, network devices, and CCTV systems, or enter custom ports and ranges. - Multi-instance tasks: run ping, LAN port checks, WAN checks, traceroute, and loop scans side by side, then jump back to each live task from the running-task badge. - WAN visibility: detect public IPv4/IPv6 and check public port reachability through an external probe. - Network tools: Ping, DNS Lookup, Traceroute, Website Check, Site Alive, Endpoint Health, Content Match, SSL/TLS Check, Domain Expiry, Subnet Calculator, Wake-on-LAN, and MAC vendor lookup. - Service Watchers: convert supported tool runs into recurring checks with healthy/failing/recovered states, thresholds, cooldowns, history, and optional notifications. - Clear diagnostics: TLS, HTTP, DNS, TCP, IPv6, and OS-level limitations are reported clearly so field work does not stop at a vague network error. The app is designed for networks and systems you own or are authorized to test. It is not a nearby Wi-Fi/SSID scanner, Wi-Fi analyzer, wardriving tool, VPN, proxy, or broad internet scanner. No account is required for the core scanning tools.
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
Screenshots
Verdict
The clearest difference is in-app purchases: IP Scanner & Service Watcher at none against Sentinel's 1. IP Scanner & Service Watcher also leads on iOS requirement (15.1 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. IP Scanner & Service Watcher asks for nothing beyond the download.
| Parameter | IP Scanner & Service Watcher | Sentinel |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 33 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Hung Cao Vu | 6tSevn BV |
In-app purchases
IP Scanner & Service Watcher
No in-app purchases
Sentinel
- Keep Full Access$0.99
Questions
Is IP Scanner & Service Watcher free?
Is Sentinel free?
Do IP Scanner & Service Watcher or Sentinel have ads?
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