Updates (fixes/small new features) are free.
For example if you've purchased version 17.0 then versions 17.1, 17.2, 17.3 will be available free of charge for registered users.
The software is updated very frequently. Updates and extra features are being release almost every month.
To get an idea how frequently new versions are being released please see the release notes:
http://www.wysiwygwebbuilder.com/forum/ ... um.php?f=1
Upgrades (major new versions) are not free but can be purchased with a discount.
Once every 15-18 months we also release a complete new version (=upgrade) with many new features and enhancements.
(For example: version 17 has more than 125 new features and improvements compare to version 16)!
The upgrade price is usually 40% of the current sales price.
We do not force you to purchase an upgrade. Older versions will continue to work the way they did when you've purchased them.
If a new version will be released within 90 days after your purchase, you will get the upgrade free of charge.
Note that this only applies to orders from this website (https://www.wysiwygwebbuilder.com), not for external (discount/deals) websites.
See also the Upgrade FAQ:
https://www.wysiwygwebbuilder.com/howtoupgrade.html