To add the widget to your site simply login to Givey go to your charity 'Settings' page, then the 'Profile' tab and scroll down. There you will see instructions along with the snippet you or your web developer can add to your site!
The difference between the button and the widget is:
Donate Button: Shows as just a red call to action button on your website
Charity Widget: Shows the red call to action button alongside your charity avatar (the image you have on your charity donation page), how much has been raised and finally the number of donations received.
The Donate Button
The Charity Widget
If you any queries or questions reference the above please email: email@example.com