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HBO Max is stacked with prestige content in Spanish, French, German, and more — but its player offers a single subtitle track, no dictionary, and no learner controls. Language Reactor, the extension most people find first, doesn't work here at all: it's Netflix and YouTube only.
Three tools can close the gap on HBO Max. Here's the honest breakdown.
LangPanda — the full study workflow
LangPanda (Chrome, Brave, Edge) lists HBO Max among its 20+ supported video sites. Every subtitle word becomes clickable: instant definitions with frequency data, one-tap AI explanations of how a word works in that exact line, and automatic capture of the sentence, audio, and screenshot into its built-in SRS — or straight to Anki. It supports 36 languages with native dictionaries, so the same setup covers a Spanish HBO original tonight and a French film tomorrow.
Pricing is $8.88/month or $58.88/year, with a 7-day free trial and 30-day money-back guarantee.
Trancy — bilingual subtitles with a free tier
Trancy also lists HBO among its supported platforms. Its focus is bilingual subtitle display and AI translation rather than vocabulary mining — the free tier covers basic bilingual subtitles with Google Translate, and paid tiers (list price $42/year for Premium) add better translation engines and AI features. If your main goal is understanding what you watch rather than systematically building a word bank, Trancy's free tier is a reasonable place to start.
asbplayer — free, bring your own subtitles
The free, open-source route: asbplayer overlays subtitle files you supply on top of virtually any streaming video, with line replay and Anki export. It works on HBO Max, but you need to source and sync a subtitle file per episode, and there's no dictionary built in.
Bottom line: for systematic vocabulary building across HBO Max and everywhere else you watch, LangPanda is the strongest option in this lane. For casual bilingual subtitles at zero cost, start with Trancy's free tier. For Anki purists, asbplayer.