All the KigoSoft products offer trial versions for your free downloading and testing. The features are the same as the full version. However, you are only allowed to download the 5 minutes of each videos with the trial version.
If you accidentally bought the wrong product, within the initial product refund period, you should purchase the correct product, contact customer service to submit a refund application for the wrong order.
During the initial product refund period, contact customer service to replace the product. If the price is inconsistent, the price of the correct product is higher and the difference needs to be made up. If the price of the product to be replaced is lower, the difference will not be refunded.