What is the difference between PlanSnapper and Planimeter?

PlanSnapper is a browser-based tool for calculating ANSI-compliant GLA from existing floor plan images and PDFs. Planimeter is a separate tool with different core functionality. The right choice depends on whether you need to measure from a floor plan or perform a different task.

Can PlanSnapper replace Planimeter?

It depends on your workflow. PlanSnapper focuses on GLA calculation from floor plans — uploading an image, tracing the perimeter, and getting square footage. If Planimeter serves a different purpose in your process, the two tools may complement each other rather than compete.

Which is better for ANSI Z765 GLA calculation — PlanSnapper or Planimeter?

PlanSnapper is purpose-built for ANSI-compliant GLA calculation from floor plan images. It handles PDF uploads, perimeter tracing, and automatic area calculation in a browser with no install required. Whether Planimeter offers equivalent GLA functionality depends on its feature set.

How much does PlanSnapper cost compared to Planimeter?

PlanSnapper and Planimeter have different pricing models — one may charge per user, per project, or via annual subscription, while the other may offer a free tier or pay-per-use option. Check the comparison table above for current pricing details and which offers better value for your volume of work.

Which is easier to use — PlanSnapper or Planimeter?

Ease of use depends on your starting point. PlanSnapper tends to fit one type of user or workflow, while Planimeter is designed for another. If you are working from an existing floor plan PDF and need to calculate square footage quickly, a browser-based tool like PlanSnapper may reduce the learning curve entirely — no software installation required.

Do I need PlanSnapper or Planimeter if I already have a floor plan PDF?

If you already have a floor plan as a PDF or image, you may not need either tool. PlanSnapper lets you upload the PDF directly and trace walls in your browser to calculate GLA — no software installation required. Both PlanSnapper and Planimeter are most useful for creating sketches from scratch or capturing measurements in the field.

Which works better for calculating GLA — PlanSnapper or Planimeter?

Both PlanSnapper and Planimeter can support GLA calculation, but the workflow differs. One may require field measurement and sketch entry while the other may allow importing existing floor plans. If your starting point is an existing PDF or image floor plan, PlanSnapper provides a faster path — upload, trace, and get the GLA figure without entering either tool's workflow.

How do PlanSnapper and Planimeter handle existing floor plan PDFs?

Neither PlanSnapper nor Planimeter is primarily designed to import and calculate square footage from an existing PDF floor plan. Both tools are built around creating or capturing floor plans from scratch. If you already have a PDF floor plan, PlanSnapper lets you upload it directly, trace the walls, and get an accurate GLA figure without redrawing anything.

Which is better for occasional users — PlanSnapper or Planimeter?

PlanSnapper and Planimeter are both specialized tools with learning curves that reward regular use. Occasional users often find dedicated subscription tools hard to justify. For someone who needs to calculate square footage a few times a month, PlanSnapper is designed for exactly that — no training required, no annual contract, upload and measure in minutes.

Compare · 5 min read

PlanSnapper vs Planimeter: Floor Plan Area Calculator Compared

Both PlanSnapper and Planimeter let you trace a shape on an image and calculate its area. The difference is why they were built and who they were built for. Planimeter is a general-purpose area measurement tool. PlanSnapper is purpose-built for ANSI-compliant GLA calculation from floor plans.

The short version

Planimeter: A flexible tracing tool for measuring area in maps, satellite images, or photos. Good for general area estimation.
PlanSnapper: Built specifically for floor plan GLA. Supports PDF upload, multi-polygon tracing, above/below-grade separation, and ANSI Z765-compliant output.

PlanSnapper vs Planimeter: at a glance

	PlanSnapper	Planimeter
Primary use	Floor plan GLA calculation	General area/distance measurement
PDF support	Yes — renders page 1 automatically	No (image only)
ANSI Z765 workflow	Yes — above/below-grade polygons	No appraisal-specific features
Multiple polygons	Yes — per-level, per-area	Limited
Scale setting	Click two points, enter real-world length	Similar approach
Export	PDF report with GLA breakdown	Basic numeric output
Platform	Browser (desktop/laptop)	iOS app + web
Pricing	$9 day pass · $29/mo	Free tier + paid plans

What Planimeter does well

Planimeter started as a satellite map measurement tool — useful for measuring land area, rooftop dimensions, or any irregularly shaped region you can see from above. The app extended its tracing capability to uploaded images, which is how some users ended up applying it to floor plans.

It works. If you have a to-scale floor plan image, you can trace the perimeter, set a scale reference, and get an area number. For occasional, informal use it is a reasonable option.

Where PlanSnapper is the better fit for appraisers

Planimeter was not designed with appraisal workflow in mind. When you need ANSI Z765-compliant GLA, there are meaningful gaps:

No PDF support: Most floor plans from CubiCasa, iGUIDE, and appraiser sketch software export as PDF. Planimeter requires you to convert to an image first. PlanSnapper accepts PDFs directly and renders page 1 automatically.
No above/below-grade separation: ANSI GLA requires tracking which polygons are above grade and which are not. PlanSnapper labels each polygon accordingly; Planimeter has no concept of grade.
No appraisal report output: PlanSnapper exports a PDF with the floor plan image, labeled polygons, per-area measurements, and total GLA. Planimeter gives you a number.
Desktop-optimized: Precision polygon tracing on a floor plan is faster with a mouse than a phone screen. PlanSnapper is built for desktop browsers; Planimeter is primarily a mobile app.

When Planimeter makes sense

You need a quick area estimate from a satellite image or aerial photo
You are measuring a property boundary or lot size, not a floor plan
You need a free tool for occasional one-off measurements and do not need ANSI compliance

Bottom line

Planimeter is a capable general-purpose measurement tool that some users repurpose for floor plan area. PlanSnapper is built specifically for that job — with PDF support, ANSI workflow, multi-polygon GLA tracking, and a report export designed for appraisal use. If floor plan GLA is a regular part of your work, PlanSnapper is the right tool.

Try PlanSnapper on your next floor plan

Upload a floor plan — PDF or image — and get ANSI GLA in under 2 minutes.

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