Understand what native speakers really say. Learn vocabulary in context. Make progress with every video you watch.
Supports all popular formats: MKV, MP4, MP3. Accurately synced subtitles, so you never adjust timing again.
Hover over any word for instant definitions. Stay in the flow while building vocabulary naturally.
Export audio clips, screenshots, and definitions to Anki. Turn content into a week of flashcards.
7-day free trial. No credit card required.
Best value- one payment, no renewals
The Lifetime licence itself doesn’t expire. Compatibility, updates, and online services depend on the supported lifetime of the product. See theTerms of Service.
Everything you need to know about SubSmith
These guides help you move from curiosity to a concrete immersion workflow.
Use theJapanese roadmapor theSpanish roadmapto see how many hours it typically takes to reach your next level.
If your workflow starts with downloaded shows, podcasts, or MKV files, readhow local-file sentence mining worksbefore you build your setup.
If you are comparing desktop and browser workflows, start with theLanguage Reactor alternative guidefor the main tradeoffs around local files, crashes, and offline study.