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by elviejo 1479 days ago
When you are the creator of the software you can license it however you want. So it is common to have a free software license for the community project and a closed source for the paid version.

Since Neo4j Inc. Is the creator of the software they can license it in multiple ways.

For more info: Business models for open-source software: Dual license

https://en.m.wikipedia.org/wiki/Business_models_for_open-sou...