> Presumably Google will require me to send them a report of how much money I'd made? This isn't particularly uncommon for revenue based licensing agreements.

> Presumably Google will require me to send them a report of how much money I'd made? This isn't particularly uncommon for revenue based licensing agreements. For example, Epic requires you to file a quarterly report once you commercially release a product based on the Unreal Engine. (https://www.unrealengine.com/en-US/release https://www.unrealengine.com/en-US/release)