Start with the standard extension flow
Install the extension in a supported browser, then open a supported video or learning site. Trancy lists YouTube, Netflix, HBO, Disney+, TED, Coursera, and Udemy among its supported platforms. Turn on bilingual subtitles, select the target and native language, and use word clicks when a translation or saved item is useful.
Keep the first setup practical. The aim is to make subtitles readable and to capture only the material worth returning to, not to collect every unfamiliar word in a session.
Choose the languages and translation engine
Set the target language and the native language first, because those choices define the bilingual subtitle view. Trancy's free tier offers Google and Microsoft translation engines, so use the available engine choice without assuming a single result will settle every ambiguity.
Avoid inventing a universal menu path. Store labels and browser interfaces change; the reliable sequence is install, open supported content, choose the two languages, then enable the bilingual subtitle workflow.
Use it by platform type
On YouTube, use bilingual subtitles and the click-to-translate or save workflow. Paid AI transcription is a separate paid feature where a transcript is not already present. On Netflix and Disney+, the same basic subtitle-tool pattern applies: open supported content, enable bilingual subtitles, and work from the language settings and word tools available there.
The extension is also listed for HBO, TED, Coursera, and Udemy. Platform support does not remove the need to confirm that the particular video has usable subtitles or an appropriate target-language option.
Understand the free-tier limits
Trancy's free tier is permanent rather than a time-limited trial. Core subtitle and translation tools remain available, while saved vocabulary is capped at 100 words and 50 sentences. If those caps become the bottleneck, read the Free vs Premium breakdown before paying.
The limitation is equally important: Trancy has no Anki export and no full SRS. Its flashcards are basic, so learners who need a larger review pipeline should keep that constraint visible rather than treating the free tier as a complete long-term SRS.