Comparison

OpenPlan3D vs Sill

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

Head to head
About

OpenPlan3D

Scan rooms with your iPhone to instantly generate accurate 2D floor plans and 3D models. Edit walls, doors, and windows, then export your designs in various formats. Share your plans or further design them on a free, open-source web editor.

Highlights
  • LiDAR room scanning
  • Automatic floor plan generation
  • 3D dollhouse model creation
  • Built-in floor plan editor
  • Multiple export formats (PNG, SVG, DXF, PDF, USDZ)
  • Open-source web editor integration
  • Private and no account required
Features
Read full description

Scan a room. Get a floor plan. OpenPlan3D Capture turns your iPhone into a room scanner. Walk the room once and Apple RoomPlan's LiDAR builds an accurate floor plan — walls, doors, windows, and furniture detected automatically. REVIEW IN 3D, INSTANTLY Every scan becomes an interactive dollhouse model and a clean 2D plan. Check dimensions, room areas, and detected objects before you export. FINE-TUNE EVERY WALL The built-in editor lets you correct what the scan missed: drag walls with live dimensions, add or move doors and windows, split walls, and label rooms. OPEN IN OPENPLAN3D Send your plan straight to openplan3d.com — the free, open-source floor plan editor — to furnish it with 140+ models, visualize in 3D, and keep designing on any computer. EXPORT ANYWHERE PNG, SVG, DXF, PDF, or USDZ. Bring your plan into CAD tools, share it with clients, or print it. PRIVATE BY DESIGN No account. No signup. No cloud. Your scans stay on your device until you choose to export them. 100% FREE & OPEN SOURCE No paywalls, no premium tier. The full source code is on GitHub. Requires an iPhone or iPad with a LiDAR scanner (iPhone 12 Pro or later Pro models, or Pro iPads). Perfect for real estate agents, contractors, interior designers, architects, landlords, and anyone remodeling, moving, or furnishing a space.

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)
Read full description

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

OpenPlan3D4 screens
Sill4 screens

Verdict

The call

The clearest difference is update cadence: Sill at every 2 days against OpenPlan3D's monthly. Sill also leads on iOS requirement (17.0 vs 26.2). On price, rating, review sentiment and ratings volume 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for OpenPlan3D against 5.0 for Sill. Both are backed by a comparable volume of ratings — 4 and 11 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

OpenPlan3D ships an update monthly, Sill every 2 days. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
OpenPlan3D versus Sill: the parameters behind the verdict, then further details
ParameterOpenPlan3DSill
PriceFreeFree
Rating5.0 (4 ratings)5.0 (11 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings411 — better
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS26.217.0 — better
Further details — not scored
Size10 MB3 MB
Age rating4+4+
DeveloperLaan LabsNOAH WILLIAM SAFFER

Customer experience

OpenPlan3D

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Sill

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

OpenPlan3D

No in-app purchases

None

Sill

No in-app purchases

Questions

Is OpenPlan3D free?
OpenPlan3D is free to download, with no in-app purchases.
Is Sill free?
Sill is free to download, with no in-app purchases.
Which has better reviews, OpenPlan3D or Sill?
OpenPlan3D and Sill are both rated 5.0 out of 5 on the App Store, from 4 and 11 ratings respectively.
Do OpenPlan3D or Sill have ads?
Neither OpenPlan3D nor Sill shows ads.
Which is updated more often, OpenPlan3D or Sill?
OpenPlan3D ships an update monthly, and Sill every 2 days. Most recently, OpenPlan3D was updated on October 11, 2026 and Sill on October 16, 2026.

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