It seems that hourly rates of german lawyers are €100 to €500 which is about what I would expect. Even a few hours of time is a lot. To explain the case, have the lawyer or their designate review it, prepare for a case and show up to court is many hours at a minimum. Even if it is a simple matter.
for myself I find the existing android clients far from adequate. if you have filters, folders, identities etc it is a fuck tonne of set up. last time i tried i just gave up.