To export/download the HTML version of your page in order to use it anywhere or host it on your own hosting, just go to your Campaign list page, then, choose your page and click on it. A popup will open, click on "settings" tab > "Advanced Publishing" > "Download HTML Page", and the page will be exported and downloaded to your computer.

PS: After hosting your page anywhere you want, you can still modify its design from your Wishloop dashboard and the page will auto-update without the need to re-download the HTML version again.

Further Reading:

Page publishing options

How to Export/Download HTML version my page?