Where to buy installations (CPI) for gaming and non-gaming applications?

We need the help of mobile developers and marketers again.–
Could you name the systems (servicesetidiscovery prily), where you can buy the installation of the application (game mode of the game) according to the CPI model and, so that you can still choose cities in Russia, for example.

(the latter option is optional). And the most important thing is that it is not tedious to embed the SDK of this service in the application.
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If you have purchase experience, could you also share the price for an install in your chosen geography.