Maps · head to head
GRASS GIS vs MAPS.ME
GRASS GIS
Maps
Long-running open source geospatial analysis engine for raster, vector and terrain processing
- From
- Free
- Rated
- -
MAPS.ME
Maps
Free, offline maps application based on OpenStreetMap data
- From
- Free
- Rated
- -
The short version
- Each has a real cost: 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.; MAPS.ME mobile-only - no web or desktop navigation client
- They diverge on capability: GRASS GIS covers Raster analysis, MAPS.ME covers Core Functionality.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which GRASS GIS and MAPS.ME actually diverge.
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 GRASS GIS
- Raster analysis
- Hydrological modelling
- Terrain analysis
- Vector topology
- Temporal framework
- Image processing
- Python API
- QGIS integration
Only in MAPS.ME
- Core Functionality
- User Interface
What people use each for
The jobs each tool is most often brought in to do.
GRASS GIS
- A hydrologist delineating watersheds and modelling flow accumulation over a large digital elevation modelnot MAPS.ME
- A research group building a reproducible time series analysis of satellite imagery that must be rerunnable years laternot MAPS.ME
- An environmental agency running viewshed and solar radiation analysis for planning assessments without buying commercial GIS seatsnot MAPS.ME
- A QGIS user who needs a specific processing algorithm that only exists in the GRASS toolboxnot MAPS.ME
MAPS.ME
- Downloading offline maps for travel without connectivitynot GRASS GIS
- Turn-by-turn driving, walking, and cycling navigation without datanot GRASS GIS
- Finding points of interest and hiking trailsnot GRASS GIS
- Following built-in travel guidesnot GRASS GIS
- Hotel booking via Booking.com integrationnot GRASS GIS
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
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.
MAPS.ME
- Mobile-only - no web or desktop navigation client
- Free tier limits offline map downloads and shows monetization prompts
- No native Windows, macOS, or Linux app
- Map data comes from the OpenStreetMap community rather than a commercial map provider
Pricing, plan by plan
GRASS GIS
Free- GRASS GISFree
- GNU GPL licence
- All modules included
- No user or seat limits
MAPS.ME
FreeNo published plan breakdown. See the MAPS.ME review.
Which should you pick?
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.
Choose MAPS.ME if
- You need core functionality.
- You want to start without paying.
- You work on iOS, Android.
- You also want user interface.
Questions people ask
- Is GRASS GIS or MAPS.ME better?
- Neither clearly leads. GRASS GIS starts at Free and MAPS.ME at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, GRASS GIS or MAPS.ME?
- GRASS GIS starts at Free and MAPS.ME at Free.
- Does GRASS GIS or MAPS.ME run on more platforms?
- GRASS GIS runs on Linux, Windows, macOS. MAPS.ME runs on iOS, Android.
- Can I use GRASS GIS for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is GRASS GIS best used for?
- GRASS GIS is most often used for a hydrologist delineating watersheds and modelling flow accumulation over a large digital elevation model, a research group building a reproducible time series analysis of satellite imagery that must be rerunnable years later, an environmental agency running viewshed and solar radiation analysis for planning assessments without buying commercial gis seats, a qgis user who needs a specific processing algorithm that only exists in the grass toolbox. Of those, a hydrologist delineating watersheds and modelling flow accumulation over a large digital elevation model and a research group building a reproducible time series analysis of satellite imagery that must be rerunnable years later are not what MAPS.ME is typically brought in for.
- What can GRASS GIS do that MAPS.ME cannot?
- GRASS GIS covers Raster analysis, Hydrological modelling, Terrain analysis, Vector topology. MAPS.ME covers Core Functionality, User Interface.
Answered from the vendors’ own pages
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.
MAPS.ME: Is MAPS.ME free to download and use?
MAPS.ME is available as a free download for both iOS via App Store and Android via Google Play. No pricing information is published on the MAPS.ME website, suggesting a free service model.
SourceGRASS 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.
MAPS.ME: What features are included in MAPS.ME?
MAPS.ME is marketed as 'not just an app but a friend in all your adventures.' Full feature details require downloading the app from App Store or Google Play. Specific limitations or premium features are not disclosed on the website.
SourceGRASS GIS: Do I need to use its interface?
No. Most people run GRASS algorithms through the QGIS processing toolbox or from Python.
MAPS.ME: How does MAPS.ME make money if the app is free?
MAPS.ME does not publish pricing or monetization details on its website. The app is available free on both iOS and Android platforms, but the business model for generating revenue is not disclosed publicly.
SourceGRASS 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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