This might be hard to believe, but buying Optimik not only gets you the latest version, but all future updates free of charge. Because we believe you should have the functionality you paid for, bugfixed and updated, for as long as Optimik will be developed. If an additional module is developed in the future, which is not included in the basic version, you can always order it separately (if you want). But you will always be able to download the most up-to-date and bugfixed version and use it without additional fees.