At zerolens we believe in photo licenses that are easy to understand for everyone. If you create photos at zerolens you can use them commercially and privately. We don't have any quotas, or other non-sense restrictions.
If you are interested in the details, take a look at our license terms here, to get the full overview.
Be aware if you upload own assets (3D models, materials, textures, etc.). Make sure you own the rights to use them, in order to be compliant.