OpenPlan3D vs Sill
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- 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 puts your Mac on your iPhone and iPad. Pick any window, or the whole desktop, and use it with touch, a trackpad, a keyboard or Apple Pencil. Your apps keep running on your Mac. Sill shows them and sends back what you do. Sill needs the free Sill for Mac on the Mac you want to use. Get it at getsill.app. It runs on a Mac with macOS 14 or later. Get started • Open Sill for Mac and allow Screen Recording and Accessibility. • Open Sill on your iPhone or iPad. Your Mac shows up. Tap it. The first time, scan the code your Mac shows. • Pick a window from the Apps list, or tap Desktop to see the whole screen. • The first time, a short tour shows you the controls. Made for touch • Tap to click. Touch and hold to right-click. Drag to scroll. • Apple Pencil works as a mouse, with hover on iPad models that support it. • Hold your device upright for a laptop layout: the picture on top, a trackpad and a row of keys below. On iPhone, turn on Larger Picture to give a window’s picture more of the screen. • On iPhone Duo, open it flat and your Mac fills the inner display. Half open, it’s a laptop: the picture above the fold, a trackpad and keys below. Closed, Sill runs on the cover display. • Type with the on-screen keyboard, or on a hardware keyboard as soon as you connect, with shortcuts and Esc. A trackpad or a mouse scrolls the window under the pointer. • Copy text on your Mac and paste it on your iPhone or iPad. To paste on your Mac what you copied on your device, tap Paste in Sill: it goes where your Mac’s cursor is. • Swipe and pinch with three fingers for Mission Control, App Exposé, Spaces, Apps and Show Desktop. • Use the menus of the app you’re in: tap Menus in the bar, or on iPad with iPadOS 26 or later, use the menu bar at the top of the screen. • Switch windows from live thumbnails in the bar. Touch and hold one to close, minimize or go full screen. Drag it to reorder. • When the mouse moves on your Mac, its pointer shows on your iPhone or iPad too. • Aa makes text larger or smaller. Smooth and sharp • Up to 120 frames per second on displays that support it. • Set quality, resolution and frame rate from your iPhone or iPad. • Hear sound from your Mac in step with the picture, a beta feature that is on unless you turn off Send Audio in Sill’s settings, on your Mac or your iPhone or iPad. Mute it on any device in Sill’s settings. Your Mac, your network • Connect over Wi-Fi, or over a USB cable. • Mac nearby but on another network? Turn on Direct Wireless Connection on the Mac and connect straight to it. • Pair each device with your Mac once by scanning a code. Over a USB cable it pairs by itself. By default your Mac lets in only the devices you paired, and every connection is encrypted. • Away from home, reach your Mac through your own VPN. Sill starts at a quality a slower connection can carry, tells you when the connection can’t keep up, and moves back to your home network by itself when you get home. Private • No account, no ads, no tracking. • Sill has no servers and collects no data. The picture and what you type go between your devices and your Mac, and to no one else. • Sill is free and open source (Apache 2.0): https://github.com/Saffsanity/sill Good to know • Sill shows one window, or the whole desktop, at a time. • Sill for Mac comes from getsill.app, not the Mac App Store.
Screenshots
Verdict
The clearest difference is update cadence: Sill at every 10 days against OpenPlan3D's monthly. Sill also leads on ratings volume (64 vs 8) and iOS requirement (17.0 vs 26.2). On price, rating, review sentiment and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for OpenPlan3D against 5.0 for Sill. That said, the two scores are not equally well evidenced: Sill has 64 ratings behind it against 8, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
OpenPlan3D ships an update monthly, Sill every 10 days. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.
| Parameter | OpenPlan3D | Sill |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) | 5.0 (64 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 8 | 64 — better |
| Update frequency | Monthly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 26.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Laan Consulting Corp | NOAH WILLIAM SAFFER |
Customer experience
OpenPlan3D
Sill
In-app purchases
OpenPlan3D
No in-app purchases
Sill
No in-app purchases









