Comparison

OpenPlan3D vs Unitto

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

Unitto

Features
Read full description

Unitto is a fast, fully offline unit converter built for anyone who needs a clean answer without digging through menus. Type a query like "5 km to mi" or "98.6 f to c" and get an instant result — or browse by category and pick units by hand. Runners convert km to mi and km/h to mph mid-run; cooks convert grams to cups; travelers convert kg to lbs and celsius to fahrenheit before a trip. Every conversion happens on your device — no network calls, no accounts, and no ads. Nothing about what you convert ever leaves your phone. Included from the start: – Natural-language quick convert: type "5 km to mi" and get the answer immediately – Six core categories: length, weight, temperature, speed, volume, and area – Favorites for the conversions you use every day – Recent history so you never lose a result Unitto Pro (one-time purchase, unlocks forever) adds: – Batch convert: paste a whole list and get every result at once – Seven extra categories: time, data storage, pressure, energy, power, angle, and fuel economy – Extra precision on every result – Unlimited favorites No subscription. No accounts. No ads. Just a fast, accurate converter that works the moment you open it — even with no signal. Terms of Use: https://obelisk.club/unitconverter/terms | Privacy Policy: https://obelisk.club/unitconverter/privacy

Screenshots

OpenPlan3D4 screens
Unitto4 screens

Verdict

The call

The clearest difference is in-app purchases: OpenPlan3D at none against Unitto's 1. OpenPlan3D also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement 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. Unitto sells 1 one-off in-app purchase. OpenPlan3D asks for nothing beyond the download.

UpkeepUpdate frequency

OpenPlan3D ships an update monthly, Unitto every 5 weeks. Both last shipped on October 11, 2026.

Scorecard2 real differences · 8 level
OpenPlan3D versus Unitto: the parameters behind the verdict, then further details
ParameterOpenPlan3DUnitto
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyMonthly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS26.226.0 — better
Further details — not scored
Size10 MB1 MB
Age rating4+4+
DeveloperLaan Labs永 张

In-app purchases

None

OpenPlan3D

No in-app purchases

1 purchases

Unitto

One-time1
  • Unitto Pro$4.99

Questions

Is OpenPlan3D free?
OpenPlan3D is free to download, with no in-app purchases.
Is Unitto free?
Unitto is free to download, with in-app purchases available.
Do OpenPlan3D or Unitto have ads?
Neither OpenPlan3D nor Unitto shows ads.
Which is updated more often, OpenPlan3D or Unitto?
OpenPlan3D ships an update monthly, and Unitto every 5 weeks. Most recently, OpenPlan3D was updated on October 11, 2026 and Unitto on October 11, 2026.

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