We have developed and released Win10wiwi without really thinking of a business model to fund it, beside the revenues generated by advertisements.
After 2 months, we knew that advertisement revenues would not be enough to make Win10wiwi's development sustainable, so we have added a "Support Us" page to our web site in order for users to be able to support us with a contribution if they wish.
Note that some of the contributions we receive will give the contributor some benefits to Win10wiwi Pro licenses (see above).
You can also use the Support Us page and click one of the advertisements there, or an advertisement anywhere on the win10wiwi.com site. It will increase (a little) the revenue we get (and that would be good for us to be able to go on building tools such as Win10wiwi and to make them evolve, to support them... So when you think of it and when an ad seems interesting to you, please come back onwin10wiwi.com and click the ads).