It must have been published by now.
Each graph zip file contains inside one folder with offline routing data and you can extract it anywhere.
Unfortunately that is not currently supported by GraphHopper routing library.
Instead can use special region wide graphs, like Alps or DACH (Germany+Austria+Switzerland).
In the future I will see also BRouter offline routing to be integrated in Kurviger.
(which doesn’t have that limitation)
Perfect answer, thanks a lot. This is really a benefit in Kurviger. For problems solution are provided or advised. 
It works!! I’m happy 
… and unhappy at the same time … 
… but unhappy only because it’s pissing down outside and I can’t try it directly with the bike under my lederhosen… 
… the weather doesn’t get better before next weekend.
Danke für das Update. Meine Frage dazu, müssen die Offline-Routendaten aktualisiert werden oder reicht es diese einmalig herunterzuladen?
Thanks for the update. My question, do the offline route data have to be updated or is it sufficient to download it once?
Kurviger 1.12 (Beta) with offline routing seems being published by Google Play and should be available now for everyone.
We generate new offline maps and offline routing data regularly.
You can update more often the routing data, which are more important for planning / navigation.
An automatic download / update of maps + graphs will come in the future,
probably as in-app subscription feature, since its development is not trivial.
Geht klar, danke.
All right, thanks.
In former versions there was a hint (bubble) which offline-maps are loaded.
I couldn’t find any hint which maps have been loaded anymore. Did I miss something?
It’s disabled for now, thinking for a more suitable way to present such info without (annoying) messages on app start. Also users will start asking for loaded graph info now (and other such info in future).
@devemux86
That is indeed a fundamental step in Kurviger’s evolution! GREAT!!!
Congratulations! Uli
Loading graph data and offline routing works great on my Huawei P20 Pro (running Android 9). But unfortunately it doesn’t on my Moto G3 (running Android 6) which is my motorcycle navigation device: I always get an “invalid routing data” message if trying to open the graph data.
I’m using the data from the “dach.zip” and checked twice that the downloaded data isn’t corrupted (first downloaded it directly from the smartphone and then on my PC and transferred it onto the phone). I even made a binary compare between the data on my Huawei and the Moto (both are the same). And I tried two different ways to store and load the graph data: on the internal memory (approx. 7GB free space left) and on the external SD card (approx. 22GB free space left).
Any hints what could be wrong? Could it be that it’s the old Android version (so far I had no problems while using Kurviger on that phone)?
Please see also the discussion here in offline routing feature topic.
Cannot know what happens with those large routing data on more weak devices,
though smaller graphs seem working fine.
Need to reproduce it somehow.
Can be memory or storage problems or something else…
Is there a possibility to load multiple (smaller) graph data folders (similar to maps)? So for my purposes I could load the graph data for Bayern, Baden Württemberg and Austria instead of DACH.
I’m using ALPS map and graph data now and this works fine on my old MotoG3. There’s in fact a problem when using larger data amounts.
I think, you could install some oft those (smaller) graph data folders and switch between them when needed.
If you consider offline routing only as a fallback when Internet is not available, you probably don’t need to switch too often.
Manfred
Like I proposed here and if you have the time, it would be useful if you could build DACH area with desktop Cruiser and other options?
See my instructions at the announcement, just select “Flexible mode” and “Car” in “Graph options”.
It will take some time and because it’s a large region, if you have RAM can change Cruiser’s start script like mentioned.
So we can see if the graph creation mode plays a role in weaker phones.
Yes, I can do that today in the evening and will report results as soon as possible.
I also can do this.
By the way: I tested the new version today during my drive to work. Worked as expected 
. Offline routing is a huge improvement for serveral situations.
I only had the suspicion that the app automatically recalculated the route after missing a waypoint while being offline even if the navigation setting “rerouting” was deactivated. I’ll verify this when driving home again.
No need anymore for you to build a new graph.
I already did that in the linked location. 