The App Store page says it only collects diagnostics.
Their website has a privacy policy in the footer which addresses the site and the app. It looks generic, however. I’m not a lawyer and cannot judge whether it’s a good policy or not.
Yeah I wouldn’t have bothered with infuse if any of the jellyfin apps had all the features but I’m functionally deaf and swiftin doesn’t do opensubtitles integration which means manually downloading.
The opensubtitles integration is a fantastic feature and I use it from time to time. The only reason I still use Infuse myself is because it was the only player available when I left emby for Jellyfin (a few years now, paid for lifetime) and it hasn’t once given me any trouble and stays out of my way. A feature rarely seen these days lol
Sorry I couldn’t be more helpful! Fingers crossed someone else comes along ^^