NON-REFUNDABLE Policy: ZD Soft provides a trial license for you to freely download and evaluate the SDK before purchasing. The trial version is fully functional, allowing you to thoroughly test each API and ensure the SDK meets your needs. Once you purchase a commercial license, it's considered that you have completed extensive testing and verified the SDK's suitability for your requirements. Given the impossibility of controlling the distribution of applications developed with the SDK and ensuring the deletion of all distributed copies of its components, ZD Soft does not offer refunds.