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Maps · head to head

Citymapper vs GRASS GIS

Citymapper logo

Citymapper

Maps

The ultimate urban mobility app for city commuters

From
Free
Rated
-
Full reviewWebsite
GRASS GIS logo

GRASS GIS

Maps

Long-running open source geospatial analysis engine for raster, vector and terrain processing

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Citymapper citymapper's own App Store listing states live transit and turn-by-turn features work only in a named list of specific cities (New York, Chicago, Los Angeles, San Francisco, and dozens of other listed cities), not globally, per the developer's own description.; GRASS GIS the location and mapset data model requires importing data into a structured database with a fixed coordinate system before analysis, which is a real barrier for anyone used to opening files directly.
  • They diverge on capability: Citymapper covers Multi-modal routing, GRASS GIS covers Raster analysis.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Citymapper and GRASS GIS actually diverge.

Attributes where Citymapper and GRASS GIS differ
AttributeCitymapperGRASS GIS
Pricing modelfreemiumOpen source, no licence fee
PlatformsIos, Android, WebLinux, Windows, macOS
Founded2011Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Maps).

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 Citymapper

  • Multi-modal routing
  • Real-time departures
  • Live bus tracking
  • Disruption alerts
  • Walking directions
  • Uber
  • Lyft
  • Lime

Only in GRASS GIS

  • Raster analysis
  • Hydrological modelling
  • Terrain analysis
  • Vector topology
  • Temporal framework
  • Image processing
  • Python API
  • QGIS integration

What people use each for

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

Citymapper

  • Daily commutingnot GRASS GIS
  • City explorationnot GRASS GIS
  • Trip planningnot GRASS GIS
  • Mobility as a servicenot GRASS GIS

GRASS GIS

  • A hydrologist delineating watersheds and modelling flow accumulation over a large digital elevation modelnot Citymapper
  • A research group building a reproducible time series analysis of satellite imagery that must be rerunnable years laternot Citymapper
  • An environmental agency running viewshed and solar radiation analysis for planning assessments without buying commercial GIS seatsnot Citymapper
  • A QGIS user who needs a specific processing algorithm that only exists in the GRASS toolboxnot Citymapper

Where each one falls short

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

Citymapper

  • Citymapper's own App Store listing states live transit and turn-by-turn features work only in a named list of specific cities (New York, Chicago, Los Angeles, San Francisco, and dozens of other listed cities), not globally, per the developer's own description.

GRASS GIS

  • The location and mapset data model requires importing data into a structured database with a fixed coordinate system before analysis, which is a real barrier for anyone used to opening files directly.
  • The native graphical interface is dated and inconsistent compared with QGIS or ArcGIS, so most users end up running GRASS through QGIS and never learn the tool they are actually depending on.
  • There is no vendor, so contractual support, service levels and liability do not exist by default and must be arranged with an independent consultancy that may not cover your jurisdiction.
  • Cartographic output and map layout are weak relative to the analysis capability, meaning a second tool is always needed to produce a publishable map.
  • Module naming and argument conventions are idiosyncratic and long-standing, so scripts are durable but the learning curve is steep and transferable skills from other GIS packages help less than expected.

Pricing, plan by plan

Citymapper

Free
  • FreeFree
    • Multi-modal routing
    • Real-time departures
    • Basic navigation
  • Citymapper Premium$4.99/month
    • Live location sharing
    • Weather integration
    • Widgets

GRASS GIS

Free
  • GRASS GISFree
    • GNU GPL licence
    • All modules included
    • No user or seat limits

Which should you pick?

Choose Citymapper if

  • You need multi-modal routing.
  • You want to start without paying.
  • You work on Ios, Android, Web.
  • You also want real-time departures.
Citymapper review

Choose GRASS GIS if

  • You need raster analysis.
  • You want to start without paying.
  • You work on Linux, Windows, macOS.
  • You also want hydrological modelling.
GRASS GIS review

Questions people ask

Is Citymapper or GRASS GIS better?
Neither clearly leads. Citymapper starts at Free and GRASS GIS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Citymapper or GRASS GIS?
Citymapper starts at Free and GRASS GIS at Free.
Does Citymapper or GRASS GIS run on more platforms?
Citymapper runs on Ios, Android, Web. GRASS GIS runs on Linux, Windows, macOS.
Can I use Citymapper for free?
Both have a free tier, so you can try either at no cost before committing.
What is Citymapper best used for?
Citymapper is most often used for daily commuting, city exploration, trip planning, mobility as a service. Of those, daily commuting and city exploration are not what GRASS GIS is typically brought in for.
What can Citymapper do that GRASS GIS cannot?
Citymapper covers Multi-modal routing, Real-time departures, Live bus tracking, Disruption alerts. GRASS GIS covers Raster analysis, Hydrological modelling, Terrain analysis, Vector topology.

Answered from the vendors’ own pages

Citymapper: Does Citymapper offer paid membership?

Yes, Citymapper offers a CLUB membership tier with exclusive features, including AI-powered route selection. However, specific pricing details for CLUB membership are not disclosed on their main website.

Source
GRASS GIS: Who maintains GRASS GIS?

An international volunteer and academic developer community under the Open Source Geospatial Foundation. It originated at the US Army Construction Engineering Research Laboratory in 1982.

Citymapper: Where can I find Citymapper CLUB pricing?

Citymapper CLUB pricing is not published on their website. You would need to check the mobile app (Apple App Store or Google Play Store) or contact Citymapper support directly for current pricing information.

Source
GRASS GIS: Can I buy commercial support?

Not from a vendor. Independent consultancies in the OSGeo ecosystem offer paid support and development, and availability varies by region.

GRASS GIS: Do I need to use its interface?

No. Most people run GRASS algorithms through the QGIS processing toolbox or from Python.

GRASS GIS: Is it suitable for production use?

Yes for analysis pipelines, and it is used by agencies and research institutions. Plan for community support rather than a service level agreement.

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