Removes the noise found in pictures making them clearer and with an increased quality. Restores image fidelity even if it has noise effects.
— I have ver. 3. If I upgrade to ver. 4, must I pay or is it free?
Yes, you need to pay a small fee to update from a major version to another one but since you are a customer, there will be upgrade benefits in your favor. This means that the upgrade fee is even lower. To check for more information, visit the official website of the product.