License agreement is quite simple
- You can install the extension on one live magento installation and on one development magento installation.
- If you’d like to use extension on two or more magento installations – separate license for each installation should be purchased.
- You are also free to modify extension as you want. However you are not allowed to share any of the code or resources included in the extension.
- You can’t distribute or share the extension, its code or any resources included in extension package