CoMaps

a community-made map app for Android, iOS & Linux

Anton & Bastian

🌐 https://www.comaps.app/

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Slides: https://talks.tzovaras/2026-04-14-hot

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CoMaps

CoMaps

  • on Android, iOS, Linux
  • started ~1 year ago, as a community-fork of Organic Maps (>50 code contributors, >250 translators for ~80 languages)
  • 100% open-source: the apps, map generation, server backends, ……
  • right right
CoMaps

Features

  • turn-by-turn navigation for car, bike, foot
  • "outdoor" map style
CoMaps

Features

  • record your tracks
  • do basic edits to OSM, will be submitted one app has internet connectivity
CoMaps

Features

  • works fully offline (once you downloaded the map region)
  • offline Wikipedia articles
  • links to WM Commons, Panoramax
Custom map delivery & updates

Distributing the maps

  • So far, custom CDN for CoMaps, servers in 🇫🇷, 🇩🇪, 🇫🇮, 🇮🇹, 🇷🇺, 🇺🇸
  • but: required downloading maps from internet
  • Had CoMaps as SPOF
  • Also problematic when running multiple many devices you want to update (e.g. humanitarian field work?)
Custom map delivery & updates

Allowing custom map download endpoints

  • Set map server of your choice
  • Can also be server in local network, not on the internet
  • Distribute maps to a fleet of devices from a laptop (maybe including the app itself?)
Custom map delivery & updates

Map hosting made easy

https://codeberg.org/gedankenstuecke/comaps-map-distributor

Looking ahead

Upcoming map features

  • So far: map versions and app versions are tied to each other (legacy of how MM & OM work)
  • In one of the upcoming versions will de-couple those, older apps can use newer maps for a while - until breaking changes are necessary
Making it work for you

Some last points:

  • As said: CoMaps is 100% open source.
  • We always welcome contributions (for general purpose features)
  • But, if you have specific, humanitarian-related needs, CoMaps could be used as a basis for your 'own' version
    • Ideas: ALPR avoidance (DeFlock), custom router for emergency vehicles, …
Thanks! 💖

Get in touch!

Visit https://www.comaps.app/community/ to find links to us on:

  • Codeberg: https://codeberg.org/comaps
  • Matrix (bridged to Telegram), in EN/ES/DE/FR, …
  • Lemmy & Reddit,
  • Mastodon, Bluesky,
  • Signal,
  • and more :D

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