Is there a local alternative to Litteratti?

[Litteratti](https://www.litterati.org/) is an app that volunteers can use to pick up trash and report the data . Looking at country charts in the past 24 hours only 14 items were reported in Germany, where as in Netherlands it’s more than 4000.

I’m wondering if there’s an alternative thing in Germany that’s more popular? I’d rather use something that is common in here so that the data might be useful for researchers.