Hi There,
Thanks for reaching out and using Adobe XD.Yes you are right ,as of now we use XD on mobile, Ipad for previewing mobile designs in real time and I am afraid, as of now, we don't have a time frame by when the full version of XD would be available on iOS however we have received a similar request on the XD UserVoice page, please upvote and stay tuned to this UserVoice request: https://adobexd.uservoice.com/forums/353007-adobe-xd-feature-requests/suggestions/12926919-ios-versi... .
To know more about mobile preview please go through attached link for more info: https://helpx.adobe.com/xd/user-guide.html/xd/help/preview-mobile.ug.html
This is the best way of communicating with the Engineering and Product Management teams regarding issues and suggestions so they can be implemented in future releases
Thanks,
Chethan