# Submate: Dual Subtitles for YT — Bilingual Captions for YouTube > Learn languages with dual subtitles and video flashcards for YouTube content. (iPhone/iPad app by Small Big Brands.) - Source: https://appshunter.io/ios/app/submate-dual-subtitles-for-yt/id6768511797 (this page in markdown: same URL + `.md`) - Developer: [Small Big Brands](https://appshunter.io/developer/1891561126) - Category: Education - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.1 · 45 MB - Languages: American English, French (France), German (Germany), Italian, Japanese, Chinese (Simplified, China), European Spanish, Thai, Chinese (Traditional, Taiwan) - Released: 2026-05-14 - Data updated: 2026-09-03 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/submate-dual-subtitles-for-yt/id6768511797/reviews.md ## What is Submate? Submate helps you learn languages from YouTube videos you already watch. Watch YouTube in the Submate app and see dual subtitles next to the video, or watch on your Smart TV and see dual subtitles on your phone. Click the star icon to save useful words or sentences as video flashcards. Submate has the best interface of any app for watching with dual subtitles directly on your phone, and is the only app that also supports watching on your smart TV. And every flashcard is a video flashcard created from YouTube content you chose to watch yourself, so you study real dialogue in context instead of random word lists. Features: - Watch Youtube on your iPhone or iPad with dual subtitles - Watch YouTube on your Smart TV or Apple TV with dual subtitles - Save subtitle moments as flashcards - Review flashcards made from real videos - See translations and word-level learning help - Use AI-powered FSRS review scheduling to only study cards right before you are predicted to forget them - Build a personal library of words and phrases from videos you actually care about Submate is built for language learners who want to turn watching YouTube into active study without leaving the content they already enjoy. Submate is not affiliated with YouTube or Google. Terms of Use: https://submate.app/terms.html Privacy Policy: https://submate.app/privacy.html ## Key features - Dual subtitles for YouTube videos - Smart TV and Apple TV support - Save subtitle moments as flashcards - Review video flashcards - AI-powered FSRS review scheduling - Personalized vocabulary library ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Submate Pro (Monthly) | $6.99 | per month | | Submate Pro (Yearly) | $49.99 | per year | ## Frequently asked questions about Submate ### How does Submate help with language learning? Submate displays dual subtitles for YouTube videos, allowing you to see translations in real-time. You can also save specific moments as video flashcards to review vocabulary and phrases in context. ### Can I use Submate on my smart TV? Yes, Submate supports watching YouTube with dual subtitles on your Smart TV or Apple TV. You can then use your phone to view the dual captions. ### What is the FSRS review scheduling in Submate? FSRS (Free Spaced Repetition System) is an AI-powered scheduling algorithm used by Submate. It predicts when you're likely to forget a flashcard and schedules it for review just before that point, optimizing your study efficiency. ### Does Submate have ads? No, Submate is ad-free, allowing for an uninterrupted learning experience. ### What devices does Submate support? Submate is available for iPhone and iPod devices. ### What are the subscription options for Submate Pro? Submate Pro offers monthly and yearly subscription plans. The monthly plan costs $6.99 per month, and the yearly plan is $49.99 per year. ### How often is Submate updated? The latest version of Submate is 1.1.0, which was released on August 18, 2026. Updates are generally released to improve features and performance. ### What is the age rating for Submate? Submate has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 4 releases) ### 1.2.0 — 2026-08-22 Watch directly on your phone with an incredible UX. ### 1.1.0 — 2026-08-18 Watch directly on your phone with an incredible UX. ### 1.0.1 — 2026-07-02 Ability to watch videos in the app itself, Improved onboarding, much simpler. ### 1.0 — 2026-05-14 No release notes. ## More apps by Small Big Brands - [WordSmash - Learn English!](https://appshunter.io/ios/app/wordsmash-learn-english/id6771593934) - [Erojoy Vibe](https://appshunter.io/ios/app/erojoy-vibe/id6790241764) All apps by Small Big Brands: https://appshunter.io/developer/1891561126 ## Related topics [dual subtitles for youtube](https://appshunter.io/ios/topics/dual-subtitles-for-youtube) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*