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PlanSnapper vs Canvas: Floor Plan Tools for Real Estate Appraisers
Canvas (by Occipital) and PlanSnapper both end up with a square footage number — but they start from completely different places. Canvas uses an iPad Pro's LiDAR sensor to scan and reconstruct a 3D model of a space on-site. PlanSnapper calculates GLA by tracing an existing floor plan in your browser. Which one belongs in your workflow depends on what you already have when you sit down to write the report.
The core difference
Canvas requires an Apple iPad Pro with a LiDAR scanner. You walk through the property, pointing the iPad at walls and ceilings, and the app builds a real-time 3D point cloud of the space. From that scan it generates a 3D model and — with a paid export — a 2D floor plan.
PlanSnapper requires nothing except a browser and a floor plan you already have. Upload the PDF or image, set the scale using any known dimension, trace the perimeter, and PlanSnapper returns the GLA immediately. No hardware beyond a laptop or phone. No on-site requirement.
PlanSnapper vs Canvas: at a glance
| PlanSnapper | Canvas | |
|---|---|---|
| What it does | Measures GLA from existing floor plans | Captures a 3D scan of a space on-site |
| Hardware required | Any device with a browser | iPad Pro with LiDAR (12.9" or 11") |
| On-site presence | Not required | Required |
| Output | GLA by floor level, instant | 3D model + floor plan (paid export) |
| ANSI GLA | Yes — trace and label each level | Not a stated feature |
| Cost | ~$9/month or day pass | Free app; floor plan export ~$4.99/scan |
| Best for | Desk review, verification, any existing plan | Field capture with LiDAR hardware in hand |
What Canvas does
Canvas is built on Occipital's Structure SDK and takes advantage of the LiDAR sensor Apple added to iPad Pro starting in 2020. As you walk through a space, the app captures millions of depth measurements per second and stitches them into a textured 3D mesh. The process takes a few minutes per room; the complete scan for a typical single-family home usually runs 15–30 minutes.
From the scan you can export a 3D model (usable in design and BIM software) or a 2D floor plan for a per-scan fee. The output is dimensionally accurate — Canvas advertises accuracy within 1% for linear measurements under ideal conditions. For appraisers, the main appeal is speed: one scan at the property can replace hand measurements entirely.
What PlanSnapper does
PlanSnapper is a measurement tool for existing floor plans. It does not capture anything — you bring the floor plan, from whatever source: a Canvas export, a builder's PDF, an MLS attachment, county records, or a previous appraisal. Upload it, draw a scale line using any known dimension (an exterior wall, a room width, even a noted scale bar), and trace the outline of each floor level.
PlanSnapper separates above-grade from below-grade area automatically based on how you label each floor, calculates GLA per ANSI Z765, and gives you a printable report. The whole workflow takes a few minutes once you have the floor plan in hand.
When Canvas makes sense
Canvas is worth considering if you already own an iPad Pro with LiDAR, you regularly need to generate floor plans on-site, and you want a self-contained capture tool that minimizes physical measurements. It is particularly useful on complex properties where manual measuring would take a long time or where you want the 3D model for documentation.
The catch is hardware dependency. Canvas only runs on iPad Pro models with LiDAR (2020 and later). If you do not own one, the entry cost to start using Canvas for this purpose is significant.
When PlanSnapper makes sense
PlanSnapper is the right tool when you already have a floor plan — which is most of the time for desktop reviews, re-certifications, and any assignment where the builder, MLS, or a prior report provides one. It works on any device, requires no hardware investment, and gets you from upload to GLA in minutes.
Common scenarios: verifying a builder-provided square footage before closing, checking a listing agent's stated GLA against the floor plan on record, or calculating above-grade area on a CubiCasa or Canvas export without relying on the originating app's reported number.
Can you use both?
Yes. The two tools are complementary rather than competing. A common workflow: use Canvas on-site to capture the floor plan, export the 2D PDF, then upload it to PlanSnapper at your desk to trace and calculate ANSI GLA with explicit control over which areas count. This keeps your GLA calculation transparent and auditable — a real advantage when a client or AMC questions the number.
Try PlanSnapper on your next appraisal
Upload a floor plan, set the scale, and get your GLA in minutes — no hardware required.
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