That site is old creator site ( original sprouts ), that why that Gonnabetya said that is not his site.

To be short, until the sprouts+ team release their wallet. We still need to use old sprouts wallet to store/mint coin. Here is the download link in the wordpress site if you can't access it

https://drive.google.com/drive/folders/0BzjQJeC8SbzicmszU2wxMVR2WjQ

Hope this will help