the download files for version 16.1 rc2 and Development builds: Kodi v17.0 “Krypton” early acces are exactly the same...all v17.0.... there is no version 16.1 rc2 to download??
only 16.0 for ios - we will have 16.1 ready shortly
AppleTV4/iPhone/iPod/iPad: HowTo find debug logs and everything else which the devs like so much: click here
HowTo setup NFS for Kodi: NFS(wiki)
HowTo configure avahi (zeroconf): Avahi_Zeroconf(wiki)
READ THE IOS FAQ!: iOS FAQ(wiki)