Files (iPadOS) does not solve the problem. Definitely Filles’ problem. Files lists the .kmp file and even shows the Keyman’s icon… opens a blank page in which (bottom, left) offers another menu with “Open in” option that finally leads to the same error message as I’d posted earlier.
Yes, on iPadOS we are still working on supporting Files app within Keyman, per the report by jahorton above.
We are continuing to work on alternative ways of sharing packages to mobile devices to streamline this because I agree, it definitely is currently too painful.
For example, we’ve recently added QR Codes (in 13.0) to Keyman Desktop, Keyman for Mac and keyman.com for easily loading deployed packages to your device. We’ve also added a QR Code to the debugger in 13.0 to simplify opening the debug host site on a mobile device.