I don't quite understand how the service makes money, but I receive a decent percentage from each advertisement. From 2GIS, I consistently get about 16%, from targeted ads — around 13%, and from contextual advertising — about 10%. In total, I definitely earn 10,000 to 15,000 a month. And this is not even the maximum return. When the budgets increase, the percentage will rise. So there's an extra incentive to work on new projects. As for withdrawing money, everything is fine. The funds arrive on my card within a couple of days, and I haven't noticed any hidden fees.