Comparison

FieldNOC vs Sill

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

Head to head
About

FieldNOC

Features
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FieldNOC puts a network technician's everyday toolkit in your pocket — subnet math, live diagnostics, console access, and switch-port workflows — built for real job sites, not a desk. Core calculators and references run on-device and offline. No account or sign-up is required. The diagnostic data they create stays on your device unless you choose to copy, export, or share it. CALCULATORS & REFERENCE (offline) • Subnet Calculator — network, broadcast, usable range, mask, wildcard, binary/hex, address class and scope. Accepts 192.168.1.50/24 shorthand. • IPv6 Toolkit — compress and expand addresses, prefix and subnet math, scope decoding, reverse-DNS names, and EUI-64 link-local from a MAC. • Route Summarization — aggregate a list of subnets into the fewest CIDR prefixes, with an optional single covering prefix for ACLs. • IP Converter — decimal to binary, hex, and integer, and back. • VLSM Splitter — carve a block into right-sized subnets. • MAC Address Tools — reformat to any style, vendor (OUI) lookup, unicast/multicast decode. • Port & Cabling Reference — well-known TCP/UDP ports, T568A/B pinouts, straight vs crossover. • Bandwidth & Transfer — a live speed test plus file-transfer time math. • Quick Reference — CIDR table, private ranges, DNS record types. LIVE DIAGNOSTICS • Wi-Fi Info — SSID, BSSID, IP, gateway, subnet, and connected-AP signal. • TLS / Certificate — check any host's certificate expiry, issuer, trust, and the names it covers. Reads expired and self-signed certificates too. • Wake-on-LAN — send a magic packet to power on a machine by MAC address. • Ping / Reachability — continuous latency, jitter, and packet loss. • Port Scanner & Subnet Sweep — find open ports and live hosts. • DNS Lookup — forward and reverse name resolution. • Net Check — captive-portal detection and DHCP lease. • mDNS / Bonjour — discover printers, casts, and SSH hosts. CONSOLE ACCESS • SSH and Telnet clients for the switches, routers, and servers you manage. Tap any result to copy it — straight into a ticket, config, or chat. OPTIONAL POD Some jobs need Layer-2 visibility a phone cannot reach on its own. Pair FieldNOC with a compatible GL.iNet travel router that you provide for switch-port discovery (LLDP/CDP), all-band Wi-Fi survey, traceroute, DHCP inspection, packet capture, and more. The built-in Pod Guide explains the setup. FieldNOC remains fully usable without a pod. WHY FIELDNOC • Offline-first — calculators and references need no signal. • Private — no accounts, no tracking, no ads. FIELDNOC PRO FieldNOC Pro is an optional auto-renewable annual subscription that unlocks pod-assisted workflows. All phone-native tools, calculators, references, SSH/Telnet consoles, and the Pod Guide remain free. Physical pod hardware is sold separately. The purchase screen shows the current price, subscription terms, and Restore Purchases. Built by people who carry a phone to the job, not a laptop. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.fieldnoc.com/privacy/

About

Sill

Stream your Mac's desktop or individual windows to your iPhone or iPad. Control your computer remotely using touch, keyboard, or Apple Pencil with encrypted connections. Offers flexible streaming quality and connection options.

Highlights
  • Stream Mac windows or desktop to iPhone/iPad
  • Remote control with touch, keyboard, Apple Pencil
  • Encrypted connections with TLS 1.3
  • Adjustable streaming quality and frame rate
  • Virtual display option for continuous updates
  • Multiple connection modes (Wired, Wi-Fi, Direct, Remote)
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Sill shows a window from your Mac, or its whole desktop, on your iPhone or iPad, and lets you use it with touch, a keyboard, a touchscreen trackpad or Apple Pencil. It streams straight from your Mac to your device over your own network, so there is no account to create and no server in between. You pair each device once, and every connection is encrypted. Both parts are free: the Sill app for iPhone and iPad, and Sill for Mac. Streaming: * Any single Mac window, or the whole Desktop, on your iPhone or iPad * Hardware HEVC video, up to 120 fps on ProMotion screens (60 elsewhere); the rate follows each device * Seven bitrate quality presets, from Low (4 Mbps) to Extreme (150 Mbps), plus Resolution, a frame-rate limit and Prioritize Encoding Speed * Text size (Aa): resizes your Mac window to fit your screen, so text is the size you want * Optional virtual display: a window streams from its own HiDPI display, sized to your device, and keeps updating even when covered on your Mac; full-screen video works too Controls: * Touch: tap to click, drag to scroll with momentum, touch and hold to right-click * Apple Pencil as the mouse, with hover * Software and hardware keyboards, with ⌘, ⌃ and ⌥ shortcuts, plus a key row with latching modifiers and a Spotlight key * Laptop layout when you hold the device upright: the picture on top, a key row and a trackpad (two-finger scroll, two-finger tap, hold then drag, three-finger gestures for Mission Control, App Exposé, switching Spaces, Apps and Show Desktop) * Dedicated iPhone and iPad layouts * Each Mac app's menus (File, Edit, View, etc) on your device, behind a Menus button * Window thumbnails: switch with a tap; hold one for close, minimize and full screen; drag to reorder * An Apps drawer: open windows and all installed apps, with search, and it launches apps Connecting: * Finds your Mac automatically; each Mac has 4 modes: Wired, Wi-Fi, Direct or Remote * USB cable (Wired) support, and a live session moves between the cable and Wi-Fi without dropping * Direct Wireless Connection (Direct, optional), for when you and your Mac don't share a network * Remote Access from anywhere through your own VPN, such as Tailscale, or a port forward * Pairing: every connection encrypted with TLS 1.3; pair each device once by QR code or a 12-digit code, and a USB cable pairs by itself; Require pairing is on by default * Your Mac keeps its keys in the protected part of its keychain that only Sill can read Sill for Mac: * A ~6 MB menu bar app with a live status card: each device, its frame rate and latency * Settings: General, Devices, Streaming, Virtual Display, Remote Access and Permissions * Launch at Login, a log window, and an update check that tells you when a new version is out * A notarized disk image download from getsill.app Sill for iPhone and iPad: * A Settings panel that changes your Mac's stream settings, and shows the connection and latency * A first-run tour, and Take the Tour to replay it * Tells you when your Mac or the device needs an update Free and open source (Apache 2.0) No account, no servers, no tracking: video goes straight from your Mac to your device, forever! Website: https://getsill.app/ GitHub: https://github.com/Saffsanity/sill Site GitHub: https://github.com/Saffsanity/sill-site

Screenshots

FieldNOC4 screens
Sill4 screens

Verdict

The call

The clearest difference is update cadence: Sill at every 2 days against FieldNOC's every 10 days. FieldNOC's advantage is iOS requirement (13.0 vs 17.0). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

FieldNOC ships an update every 10 days, Sill every 2 days. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

Scorecard2 real differences · 8 level
FieldNOC versus Sill: the parameters behind the verdict, then further details
ParameterFieldNOCSill
PriceFreeFree
Rating—4.9 (38 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—38 — better
Update frequencyEvery 10 daysEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size39 MB3 MB
Age rating4+4+
DeveloperOak & Finch Interactive LLCNOAH WILLIAM SAFFER

In-app purchases

None

FieldNOC

No in-app purchases

None

Sill

No in-app purchases

Questions

Is FieldNOC free?
FieldNOC is free to download, with no in-app purchases.
Is Sill free?
Sill is free to download, with no in-app purchases.
Do FieldNOC or Sill have ads?
Neither FieldNOC nor Sill shows ads.
Which is updated more often, FieldNOC or Sill?
FieldNOC ships an update every 10 days, and Sill every 2 days. Most recently, FieldNOC was updated on October 25, 2026 and Sill on October 26, 2026.

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