I think a couple of months ago I found out about Dawarich here on this community as the author posted here. I installed a couple of days ago on a VM I run and have been impressed so far. I started logging track 10 years ago when I found out about OsmAND and never really knew what I would do with those tracks until I discovered Dawarich. Interesting piece of software. With the "trips" function, it reminded me of my trip to Scotland and all the places I had seen on which day.
Now the challenge is to understand why Owntracks feeds it a couple of points a day and only when I'm at home. I thought Owntracks would log locally on mobile phone and then download everything on Dawarich when it was back online on the VLAN at home (i don't have external access setup and don't want to for now). Is this some server side problem or a app problem? I've not changed the default settings of either the Dawarich server or the app. Any clues? I was goign to try the Dawarich android app but its not on f-droid so will need to wait until it is (strictly on GOS and no Google where I live ;-)
I would try to use GPSLogger, it is capable of sending data to dawarich and is really reliable. AFAIK, the Owntracks app has a queue and normally sends the data back when it is online, but I also found that this is sometimes not the case, and there is no way of restoring it then. GPSLogger has the advantage that it stores the GPX file also on your phone; if something goes wrong, you can still grab that and upload it.
Colota also seems like an awesome alternative. I've only heard good things about it.
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