ScanNet vs Fencekeeper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScanNet
Discover all devices connected to your network, whether at home or in a specified IP range. Gain insights into each device and its activity, useful for both casual users and IT professionals. Features include port checking, multiple scan modes, and advanced search capabilities.
- Find all network hosts
- Check open ports during scan
- Multiple scan modes (ARP, ICMP, UDP, DNS)
- Advanced host search
- Save and open device lists
- Includes ping, traceroute, port scanner
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App will find all hosts in your home network or in selected IP range. It can be used not only to know who are using your WiFi and learn more about every device, but also for solving professional tasks. By installing ScanNet - Network Scanner on your device, you get a handy and easy-to-use network scanner that does not require special knowledge when working in the default mode. Following functions and capabilities of the application will be useful for administrators and IT specialists: 1) The ability to check ports right during the search for hosts. Filtering by open ports allows you to quickly find the server you need on your network. 2) IP scanner supports 4 scan modes - arp read, icmp ping, udp ping, dns request. The ability to manually set a DNS server significantly expands the functionality of scanning private networks. 3) A wide range of settings allows you to manually set both the scanning mode and the used methods of name resolution - currently supported by DNS, mDNS, netbios. 4) Advanced search in the list of found hosts - you can search both by all available information, and by address, name, open ports. 5) Personalization - the ability to change the picture and the hostname displayed in the interface. This function requires binding to the WiFi network name for the best performance. In order for the application to get the network name, access to the location will be requested. 6) The function of saving a list of found devices and opening it for study later. 7) The program includes network utilities familiar to every administrator - ping, tracerout, port scanner. Premium access allows you to access them directly from the device information screen. In the free version, all utilities are available for calling from the application menu.
Fencekeeper
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You're standing in a field with a drone, and the question is always the same: how high can I legally fly here? Fencekeeper answers it. Tap the map where you're taking off — or draw your actual flight area — and it pulls the live FAA facility-map grid, checks the terrain under the whole area, and hands you the exact numbers to type into DJI Fly's Safety settings: Max Altitude and Max Distance. It even reminds you where your return-to-home altitude has to sit. And it knows about terrain — the trap almost nobody covers. FAA ceilings are measured from the ground beneath the drone, but DJI's altitude limit is measured from where you took off. Stand on a rise and fly over a valley, and your "legal" altitude quietly isn't. Fencekeeper samples USGS elevation across the whole fence, corrects your Max Altitude, and can shade the ground itself — green where your altitude is legal, amber where it's tight, red where it isn't. Then it does the thing nothing else does. Tap Track before you switch over to DJI Fly, and Fencekeeper watches your position against the fence while you fly — because pilots walk while filming, and it's easy to drift out of the area your numbers were computed for. Wander toward the edge and your phone sounds off — and your wrist too, with Apple Watch taps that quicken as you get close. What's free, forever: — Live FAA UAS Facility Map ceilings on a dark flight-deck map — Governing ceiling for your exact fence, not just the cell you're standing in — Terrain-corrected altitude limit from USGS elevation data — The two DJI Fly Safety numbers, in feet or meters, with tap-to-copy — Return-to-home altitude guidance — Pre-flight conditions: wind and gusts, Kp for GPS health, civil twilight, rain — plus a one-tap TFR check — Saved fences: name a spot, reload it in a tap, numbers recompute fresh — Warns you when your fence overlaps a 0 ft cell where LAANC can't authorize flight Pro, one purchase, no subscription: — Live pilot tracking with INSIDE / NEAR EDGE / BREACH alerts that work while DJI Fly is on screen — Apple Watch companion: fence state at a glance, wrist taps that quicken near the edge — Legality shading: the ground colored by whether your altitude is legal there — Drawn fence shapes for your real flight area — with an honest warning where DJI's circular limit can't protect you — USGS topographic and satellite map styles, fences to 8 km What it doesn't do — and you should know before you buy: it tracks this phone, not your aircraft (DJI doesn't share drone telemetry with other apps). It doesn't show TFRs, and it doesn't file your LAANC authorization — you still need an approved provider like Aloft for that. Ceilings are feet AGL from the FAA's public facility map, fetched live, so you need a data connection at the field. Built for a friend who flies, by someone who got tired of guessing.
Screenshots
Verdict
The clearest difference is ads: Fencekeeper at none against ScanNet's shown. On price, update cadence, in-app purchases 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. ScanNet sells 1 one-off in-app purchase and Fencekeeper sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
ScanNet ships an update every 2 months, Fencekeeper every 6 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | ScanNet | Fencekeeper |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (358 ratings) — better | — |
| Positive reviews | 78.6% of reviews | — |
| Number of ratings | 358 — better | — |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 17.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleg Gutlyanskiy | Benjamin Van Scyoc |
In-app purchases
ScanNet
- Premium features$3.99
Fencekeeper
- Fencekeeper Pro$14.99









