Grouparoo has an open-source community edition for your engineering team that is free to use. You host it in your own cloud by providing a Postgres database for its use. Access to the enterprise edition that allows your Marketing team to self-serve their own data is available for $200/month.
If you’d prefer to have it hosted for you, that option is also available via our SaaS offering. The price depends on the data volumes involved, but also starts at $200/month.