Garry - there may be something in this thread that interests you https://zroadster.org/threads/wifi-diagnostics.4619/ if you have the right phone or an iPad.
I have the old BMtechnics package which I can just about still run off an old Windows laptop. On last years road trip to France/Spain I wanted the re-assurance of being able to read codes in event of problems but didn't want to lug the laptop as well. I already had the 20pin adaptor so I bought a cheap wifi unit and downloaded a free code reader app from auto.doc.