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Software · head to head

Leaflet vs NAPA

Leaflet logo

Leaflet

Software

Leading open-source JavaScript library for mobile-friendly interactive maps, used by millions of developers worldwide

From
Free
Rated
-
Full reviewWebsite
NAPA logo

NAPA

Software

Ship design and operational excellence

From
$5000/year
Rated
-
Full reviewWebsite

The short version

  • Only Leaflet has a free tier, so it costs nothing to try first.
  • Each has a real cost: Leaflet 2D only with no support for 3D features, tilt, or rotation; NAPA the Internet Archive's capture of NAPA's homepage on 1 January 2020 named six distinct maritime software products, NAPA Loading Computer, NAPA Emergency Computer, NAPA Logbook, NAPA Fleet Intelligence, NAPA Voyage Optimization and ClassNK-NAPA GREEN, with no price figure published for any.
  • They diverge on capability: Leaflet covers Core Functionality, NAPA covers Ship design.

Where they differ

Only the attributes on which Leaflet and NAPA actually diverge.

Attributes where Leaflet and NAPA differ
AttributeLeafletNAPA
Starting priceFree$5000/year
Pricing modelUnknownone-time
Free tierYesNo
PlatformsWebWindows, Web
FoundedUnknown1989

Identical on both: user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Leaflet

  • Core Functionality
  • User Interface

Only in NAPA

  • Ship design
  • Stability calculation
  • Voyage optimization
  • Performance monitoring
  • CAD systems
  • Fleet management
  • Weather routing
  • Windows support

What people use each for

The jobs each tool is most often brought in to do.

Leaflet

  • Embedding interactive maps in a web pagenot NAPA
  • Mobile-friendly map interfaces across desktop and mobile browsersnot NAPA
  • Mapping where bundle size matters, at roughly 42 KB of JavaScriptnot NAPA
  • Extending a basic map with plugins rather than adopting a full platformnot NAPA

NAPA

No use cases recorded yet. See the NAPA review.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Leaflet

  • 2D only with no support for 3D features, tilt, or rotation
  • Performance degrades when rendering large datasets of complex vector geometries without optimization
  • Limited dynamic styling support; style is fixed on the server when using raster tiles
  • Lacks native support for WMS features; requires plugins like Leaflet.WMS and complex feature identification is cumbersome
  • Requires external tile service for map imagery; does not provide map tiles natively

NAPA

  • The Internet Archive's capture of NAPA's homepage on 1 January 2020 named six distinct maritime software products, NAPA Loading Computer, NAPA Emergency Computer, NAPA Logbook, NAPA Fleet Intelligence, NAPA Voyage Optimization and ClassNK-NAPA GREEN, with no price figure published for any.

Pricing, plan by plan

Leaflet

Free

No published plan breakdown. See the Leaflet review.

NAPA

$5000/year
  • Fleet Intelligence$15000/year
    • Voyage optimization
    • Performance monitoring
    • Analytics

Which should you pick?

Choose Leaflet if

  • You need core functionality.
  • You want to start without paying.
  • You also want user interface.
Leaflet review

Choose NAPA if

  • You need ship design.
  • You work on Windows, Web.
  • You also want stability calculation.
NAPA review

Questions people ask

Is Leaflet or NAPA better?
Neither clearly leads. Leaflet starts at Free and NAPA at $5000/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Leaflet or NAPA?
Leaflet has a free tier; the other does not. Paid plans start at Free for Leaflet and $5000/year for NAPA.
Does Leaflet or NAPA run on more platforms?
Leaflet runs on Web. NAPA runs on Windows, Web.
Can I use Leaflet for free?
Yes. Leaflet has a free tier, so you can try it without paying. NAPA starts at $5000/year.
What is Leaflet best used for?
Leaflet is most often used for embedding interactive maps in a web page, mobile-friendly map interfaces across desktop and mobile browsers, mapping where bundle size matters, at roughly 42 kb of javascript, extending a basic map with plugins rather than adopting a full platform. Of those, embedding interactive maps in a web page and mobile-friendly map interfaces across desktop and mobile browsers are not what NAPA is typically brought in for.
What can Leaflet do that NAPA cannot?
Leaflet covers Core Functionality, User Interface. NAPA covers Ship design, Stability calculation, Voyage optimization, Performance monitoring.

Answered from the vendors’ own pages

Leaflet: Is Leaflet free and open source?

Yes. Leaflet is open-source JavaScript library licensed for free use. Over 400 plugins add capabilities like marker clustering, heatmaps, drawing tools, geocoding, and routing.

Source
Leaflet: How do I include Leaflet in my project via CDN?

Leaflet is available on multiple free CDNs including unpkg, cdnjs, and jsDelivr. Include the CSS stylesheet from https://unpkg.com/leaflet@1.9.4/dist/leaflet.css and JavaScript from https://unpkg.com/leaflet@1.9.4/dist/leaflet.js in your HTML head.

Source
Leaflet: What mapping services does Leaflet support?

Leaflet integrates seamlessly with various mapping services including OpenStreetMap, Google Maps, Bing, and other custom tile providers, allowing developers to choose the best base layer.

Source
Leaflet: What is the file size of Leaflet?

Leaflet weighs about 42 KB of JavaScript.

Source
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Related pages

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