Compare · 6 min read
PlanSnapper vs Sketch and Calc: Which Floor Plan Tool Is Right for You?
Sketch and Calc is a mobile app used by appraisers to sketch floor plans in the field. PlanSnapper is a browser-based tool for measuring GLA from floor plans you already have. Both produce ANSI-compliant square footage, but the workflows are fundamentally different. Here is how they compare.
The short version
- Sketch and Calc: A mobile app (iOS and Android) for drawing floor plan sketches by entering wall lengths on-site. You walk the property, measure each wall, and enter dimensions one at a time. Fast and accurate for traditional field inspections.
- PlanSnapper: A browser-based tool for uploading an existing floor plan image or PDF and tracing the perimeter to calculate GLA. You do not need field measurements -- you work from a floor plan you already have. Works on desktop, laptop, or tablet in any browser.
PlanSnapper vs Sketch and Calc: at a glance
| PlanSnapper | Sketch and Calc | |
|---|---|---|
| Primary use case | Measure GLA from an existing floor plan | Sketch a floor plan from field measurements |
| Platform | Browser (desktop / laptop / tablet) | iOS and Android mobile app |
| Requires on-site measurements | No — uses scale from the floor plan image | Yes — enter each wall dimension manually |
| Upload floor plan image/PDF | Yes (core feature) | No (draw from scratch only) |
| Works from CubiCasa / Matterport exports | Yes | No |
| ANSI Z765 GLA calculation | Yes (above/below grade separation) | Yes (auto-calculates from drawn sketch) |
| Best for | Desk reviews, scan-based workflows, verification | Traditional on-site field inspections |
| No software install | Yes (browser only) | App download required |
| Price | $9 day pass / $29/mo | ~$8-15/mo subscription |
What Sketch and Calc does well
Sketch and Calc was built specifically for the field inspection workflow. On your phone or tablet, you enter each wall measurement as you walk the property. The app draws the sketch in real time and automatically calculates total GLA, above-grade and below-grade areas, and individual room sizes. It is fast once you learn the interface, and the mobile-first design makes it genuinely practical to use on-site.
For appraisers who do traditional inspections -- walking the property with a laser or tape measure, entering dimensions on the spot -- Sketch and Calc streamlines the field sketching step significantly compared to paper or desktop-only tools.
Where Sketch and Calc falls short
- Requires field measurements. Sketch and Calc is built for entering dimensions on-site. If you receive a CubiCasa scan, a Matterport export, or any other floor plan, you cannot use it as a reference -- you still have to manually enter every wall.
- Mobile-first limitations. The interface is optimized for phone use in the field. For desk work -- reviewing floor plans, verifying measurements, or working from a scan -- a mobile app is the wrong tool for the job.
- No floor plan upload. There is no way to import an existing floor plan image and measure from it. The only input method is manual dimension entry.
Where PlanSnapper wins
- Built for scan-based workflows. As more properties get scanned with CubiCasa, Matterport, iGUIDE, and Canvas, appraisers are receiving floor plans rather than measuring from scratch. PlanSnapper is designed for exactly this workflow -- upload the scan output, trace, set scale, done.
- No field visit required. For desk reviews, remote appraisals, or situations where a third-party scan is provided, PlanSnapper calculates GLA without you ever visiting the property.
- Works on any device in any browser. No app to download, no OS requirement. Works on your desktop, laptop, or tablet with the same interface.
- Fast verification. Even for appraisers who sketch on-site with Sketch and Calc, PlanSnapper is useful for cross-checking measurements against a CubiCasa scan or MLS floor plan. Two independent measurements is a strong defensible position.
Different workflows, not competing tools
Sketch and Calc and PlanSnapper are designed for different moments in the appraisal process.
Use Sketch and Calc when you are on-site at a property with a laser or tape measure and want a mobile-friendly way to sketch as you walk the rooms.
Use PlanSnapper when you already have a floor plan -- whether from a scanning service, an MLS listing, an architect, or a prior appraisal -- and need to extract accurate, ANSI-compliant GLA from it without remeasuring.
Already have the floor plan?
Upload any floor plan PDF or image and calculate ANSI Z765-compliant GLA in minutes. Works with CubiCasa, Matterport, iGUIDE exports, and any floor plan image.
Try PlanSnapper Free →Related reading
More comparisons
- PlanSnapper vs SketchAndCalc: Which Floor Plan Measurement Tool Is Better?
- PlanSnapper vs Google Maps for Floor Plan Measurement
- PlanSnapper vs Planimeter: Floor Plan Area Calculator Compared
- Appraisal sketch software alternatives for 2026
- How to read a floor plan: symbols, scales, and dimensions
- Blueprint dimensions: how to read architectural drawing scales