If we buy powerapps/flow as standalone(when GA) and connect it with onpremise list do end users need to have azure or office 365 account? Whats the per user pricing in standalone? Also it needs to support sharepoint 2013 custom STS as thats one of the authentication methods(along with windows)
About question #1, yes, end users need to have Azure or Office 365 account. About question #2, currently, PowerApps and Flow are both in Preview and free, so we don’t need to pay for it. About question #3, in this article about “Support for on-premises SharePoint lists”, there is a comment from archanan@MSFT. From this comment, we know that this feature would be supported in the future. Below is the link of the article: https://powerapps.microsoft.com/en-us/blog/support-for-sharepoint-on-premises/
Best regards, Mabel Mao
Community Support Team _ Mabel Mao If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.