The ability to share canvas apps with external users is now availabile in public preview! The documentation can be found here: https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/share-app#share-with-guests
The blog announcement is here: https://powerapps.microsoft.com/en-us/blog/share-canvas-apps-with-guests-in-your-organization/
The ability to share canvas apps with external users is now availabile in public preview! The documentation can be found here: https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/share-app#share-with-guests
The blog announcement is here: https://powerapps.microsoft.com/en-us/blog/share-canvas-apps-with-guests-in-your-organization/