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CoMaps vs Cartes IGN: catalog facts
CoMaps	Cartes IGN
Best for: People who want private offline navigation based on OpenStreetMap	Best for: Hiking, travel and map exploration in France using official IGN maps
Free Free and open source, supported by donations.	Free Free to use and open source under the GPL-3.0 licence.
Android, iOS	Android, iOS
Offline search and turn-by-turn routing for foot, bike and car Outdoor mode with trails, campsites and contour lines All 4 strengths for CoMaps Offline search and turn-by-turn routing for foot, bike and car Outdoor mode with trails, campsites and contour lines Offline Wikipedia articles for points of interest Community-governed and privacy-focused	Official IGN topographic and base maps Thematic geographic data layers from IGN and partners All 3 strengths for Cartes IGN Official IGN topographic and base maps Thematic geographic data layers from IGN and partners Free and open source
Public transport layer covers only some cities Map data quality depends on OpenStreetMap coverage in each area	Available only in French Coverage and data focus on France
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Offline features available	Not stated if it works offline
Official website Full listing and sources Sources for CoMaps comaps.app f-droid.org/packages/app.comaps.fdroid apps.apple.com/us/app/comaps/id6747180809 Catalog checked September 23, 2026	Official website Full listing and sources Sources for Cartes IGN ign.fr/telechargez-application-cartographique-cartes-ign github.com/IGNF/cartes-ign-app f-droid.org/packages/fr.ign.geoportail Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.