Older methods, where a server owner could download content for others, have been replaced. Downloads are now specific to the account that initiated them.
Modern Plex app updates often drop support for older iOS versions. Finding a specific version, such as one compatible with iOS 9.3 ( os93 ), requires sourcing older .ipa files.
Here is an analysis of the current situation regarding Plex downloads and legacy support. The Landscape of Plex Downloads (2026)
Older app versions often fail to connect to modern, updated Plex Media Servers due to security protocol mismatches (e.g., TLS requirements). Best Practices for Legacy Access