Many official services offer content in 1080p with Latin Spanish audio tracks. These platforms often allow you to download content for offline viewing within their respective apps. Mainstream Services
While you cannot get a clean .mkv file from these, you can legally download the movie and watch it offline. For 90% of users, this solves the problem.
: Many users in Latin America look specifically for "Audio Latino" because they prefer the localized dubbing over subtitled versions.
A specialized app available on the Apple App Store focusing on Spanish-language content.