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Posted by basilikum 23 hours ago

CoMaps – FOSS Offline Maps(www.comaps.app)
735 points | 182 commentspage 2
mpawelski 6 hours ago|
CoMaps is great!

I'm still mostly using Organic Maps though, and from time to time I switch to Comaps to see the differences.

In general I like the colors of CoMaps more than OrganicMaps (light theme, dark is so-so), but I still use OM because:

- OM shows colors for marked trails. Pretty recent feature and not as good as in Mapy.com, but at least I don't need to switch to Mapy.com just for this feature.

- recently OM added public transport routes. UX is quite bad, but it's much better that having nothing! It was quite useful at my last trip.

The nicest feature that CoMaps added recently are map updates that are independent to an app update, and they try to update maps like once a week. So it's much more probable that you will have more up to date data there than on OM. So I started using it more too :)

KolmogorovComp 21 hours ago||
Tangential, but does anyone know if an app exists that that the video feed of your phone with the GPS loc and reads the signs from the road and compare it to OSM to update it if necessary?

Let’s be clear, in the end I use Waze for routing due to the traffic updates, but I see sometimes outdated speed limits and know OSM is one of its sources.

menturi 16 hours ago||
I remember seeing something like this where it could identify signs and things, but the quality from what I recall was not great (could be way off and have many duplicates). I might be remembering Mapillary, which has a Map data button at the top left and seems to show signs [0]. I don't think it auto-updates OSM based on these data.

[0] https://www.mapillary.com/app/?lat=52.4758193487485&lng=-1.8...

raybb 18 hours ago|||
Oh I don't have a link but there was a project just like this someone hacked together a while back. I think it used Gemini live or something and as you walked and scanned things it would suggest changed to the map. It was a rough demo but seemed promising.

I've been wanting to do something similar but just by taking photos of menus and updating the POI with new hours/website/phone etc

nine_k 19 hours ago||
Looks like a glue-together narrow-purpose kind of app that AI is relatively good at producing.
Magicrafter13 20 hours ago||
This is what I use in my main GrapheneOS profile. I still have a dedicated profile for Google Maps though as I still have not been able to give up their greater datasets (i.e. traffic) in all cases.

Decent app though. I saw someone here mention proprietary code but I wouldn't worry about it, just install the F-Droid version. That's why I use F-Droid - to guarantee I don't get proprietary blobs.

pastk 8 hours ago||
Proprietary parts had been mentioned in the context of Organic Maps - their map generator is partially closed source, and even OM F-Droid build includes some proprietary assets.

In CoMaps we are serious about being 100% FOSS and this is one of the reasons we've forked from OM.

pastk 9 hours ago|||
Don't worry, we have no proprietary code in all builds of CoMaps, not just F-Droid one :)
MrDrMcCoy 20 hours ago|||
Magic Earth is fairly decent at traffic and dynamic routing. Worth the small subscription fee to keep them going, in my opinion.
kQq9oHeAz6wLLS 18 hours ago||
HERE WeGo does traffic, if you want to ditch Google Maps.
TechTechTech 22 hours ago||
Tried it today. Works fine for navigation. I am missing live traffic info. This is the one thing keeping me in Google Maps the past years.
jhoho 22 hours ago|
Same. Apparently there's ongoing work to integrate live traffic: https://codeberg.org/comaps/comaps/projects/21877
h4kunamata 15 hours ago||
I use CoMaps, it works like a charm on GrapheneOS + Android Auto.

I have also contributed to the OpenStreetMap by adding POI and requesting logic to be changed.

The only major issue which I got used to but sucks, is the search when it does not involved famous places or streets or both.

Streets will be shown as minor or major and alike, I do need to use Google Maps Browser version to find the place, and the on CoMaps manually navigate to said place.

But the fact that I get a map update a week, sometimes two maps update a week which other apps will take months and subscription, that alone is worth hustle.

goodpoint 9 hours ago|
Stop shilling graphene. We can tell.
nobody42 6 hours ago||
Every time GrapheneOS "just works" should be mentioned, because some ecosystems are straight hostile to user-controlled systems.
Tomte 15 hours ago||
CoMaps starts maximally zoomed out (showing the whole world). Organic Map starts showing my neighbourhood.

That‘s the simple reason I‘m using Organic Maps and not taking a fifth look at CoMaps (and I downloaded CoMaps yesterday after the HN thread).

adamjb 14 hours ago|
CoMaps remembers the zoom and position of your last session and returns there on launch
pixelesque 12 hours ago||
Which isn't particularly helpful if you're moving around a lot.

Would be nice for a preference.

martin- 9 hours ago||
I just opened CoMaps. The first thing that happened was that it zoomed out from my previous location in another city, and then zoomed in on my current position.
Sophira 15 hours ago||
How does this compare with the F-Droid version of OsmAnd?

[Edit: To answer my own question a little bit, I found a post from September 2025 that compares OsmAnd and Organic Maps (which this project forked from): https://blog.firedrake.org/archive/2025/09/OSMAnd_vs_Organic... .

I can't find anything more recent or for CoMaps specifically, other than auto-created "alternatives" pages. I would absolutely love to hear from anybody who has tried both!]

jllyhill 10 hours ago|
Think of it as a very stripped down and opinionated version of OsmAnd. It lacks a lot of power features, but is extremely fast and all of the options are easily available and work out of the box. So it's great for everyday use (especially in cities with a lot of POIs) but not as good for in depth travel and route planning.

For example, I've used F-Droid OsmAnd extensively when planning my trip to Japan, because its guides, WikiData and Wikipedia integration are godsend for finding interesting places to visit, but used CoMaps when I was there to look things up and build routes. I'm also exclusively using OsmAnd for writing GNSS tracks because I can fine tune the parameters of measurements it captures.

exiguus 10 hours ago||
CoMaps is my daily. From time to time I also use it's share my location, add place or record track functionality.
rickydroll 22 hours ago||
While I do use mapping programs for directions, I more often use them for a more accurate estimate of time and traffic density. I haven't looked very hard, but I haven't seen any OpenStreetMap data or equivalent that shows "Real" travel times and traffic density.
Joel_Mckay 18 hours ago|
Indeed, because gleaning telemetry data from millions of active users isn't a map applications normal intended use-case.
amatecha 14 hours ago|
Just used it the other day while I was back-country hiking. Set some markers for some landmarks and calculated hiking distance/duration between them. CoMaps is awesome! It's also the reason I contributed to OpenStreetMaps for the first time a while ago, contributing the name of a landmark/structure up in a local mountain.
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