Issue description: Hello. Symfonium is downloading a lot of data and I can’t understand why. I have an automatic playlist to cache songs that I played. That has resulted in an offline cache of ~3GB. However, it looks like the app has downloaded almost 10GB of data. To prevent more data usage, I tur…

Your log is nearly empty so impossible to tell anything. But yes if you have not enable Wifi only on the provider, sync will use data

Thank you, yes I didn’t realize I had to turn logs on manually. I don’t mind it using mobile data, but do you have any idea what the data might have been? I guess I don’t understand why data usage is 10GB but the offline cache is only 3GB. What could the remaining 7GB have been? Is it streaming so…

No one can guess. Only logs can show what is happening as a given time.

Thanks, it just used another 300MB in the last hour while I wasn’t listening to anything. I’ve generated a new log file which is 18MB big so it should have more details. How do I add it to this ticket? Upload using ‘all files’ in the reply dialogue or is there another way you’d prefer?

In the logs Symfonium is scanning and extracting tags from media (So files that where not scanned before) so yes this takes quite some data for that.

Thanks, I can understand that syncing consumes data. I have a few questions and not sure how to word them, but roughly: I made a big sync on wifi at the start of the month, and have added no new files since then. What is the average amount of data consumed/expected for a full sync of a ~400GB musi…

Actually sorry, it looks like it’s way more than 4GB. Symfonium used 47GB yesterday and 59GB today. Is that showing up in the logs? Is this normal when my music collection is only 400GB?!

You are not using a server so Symfonium needs to read the content of the files to extract the tags. The data is cached in Symfonium, but in those logs, it scans files it never saw before, so the sync probably never finish. Sync only starts manually, unless it did not finish the first one fully the…

Symfonium support

Understanding gigantic data usage

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Tolriq August 18, 2025, 1:17pm 6

How to gather logs and open an issue FAQ

Symfonium is a sophisticated application with extensive support for a wide range of providers and players. Troubleshooting can be challenging without the necessary details and logs specific to your unique configuration. Fortunately Symfonium have a powerful debug mode engine that can be enabled to easily gather those informations. It gathers the necessary data to be able to see what is happening and is required to be able to fix issues. Once you have the logs reproducing the error, you can se…

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