CaptionTube
Hironobu Saito Education iPhoneiPadiPod touch
CaptionTube is a free Education app for iPhone and iPad by Hironobu Saito. Requires iOS 13.0. Updated June 12, 2026.
- Price
- Free
- on the App Store
- Size
- 39 MB
- Age 12+
- Updated
- Jun 12
- 2026 · v1.1.2
Screenshots
About CaptionTube
Videos + Captions + Translation - Take Your English Learning to the Next Level CaptionTube is an app specialized in English learning that leverages YouTube video captions. By displaying English captions and Japanese translations simultaneously with a fully synchronized highlight feature, you can improve your English skills efficiently while having fun. ------------------------------------------- Key Features ------------------------------------------- ● Real-time Caption Synchronization ・Easy-to-read captions divided into sentences ・Auto-highlight captions based on video playback position ・Jump instantly to the corresponding scene by tapping a caption ・Word-by-word highlighting for detailed review ・Text search within captions to quickly find specific words or phrases ● Japanese Translation Feature ・Display Japanese translations of English captions with one tap (iOS 18+) ● Simple Operation ・Get captions instantly by entering a YouTube video URL or ID ・Intuitive interface that anyone can start using immediately ・Keyword search within the app ・Recommended channels feature (organized by beginner/intermediate/advanced levels) ・Playback history to quickly access previously watched videos ● YouTube Search Feature ・Display thumbnails, titles, view counts, and video duration in a list ・Play videos directly from search results ・Search history feature to quickly recall past searches ● Customizable Settings ・Adjust caption font size ・Change playback speed (0.25x to 2x) ------------------------------------------- Recommended For ------------------------------------------- ・ Those who want to learn English enjoyably through YouTube videos ・ Those who find English captions alone difficult to understand ・ Those who want to study repeatedly at their own pace ・ Those who want to learn English from their favorite YouTubers' videos ・ Those who want to make effective use of commuting time ・ English learners of all levels, from beginner to advanced
What’s new
Version 1.1.2 · Updated June 12, 2026
We have decided to discontinue this app. Thank you.
App privacy
The developer, Hironobu Saito, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction, Other Usage Data
- Diagnostics: Crash Data
Used for: Analytics, App Functionality
Alternatives to CaptionTube
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| CaptionTube | – | Free | June 12, 2026 | |
| Swipelingo: Learn Japanese YT | – | Free | Oct 10, 2026 | Compare |
| Language Learning with Videos | – | Free | Aug 1, 2026 | Compare |
| 英語チューブ - 動画で英語を覚えよう! | 5.0 / 5 (1) | Free | Jul 23, 2025 | Compare |
| Duosub - 動画で楽しく英語学習 | – | Free | Oct 2, 2026 | Compare |
| Favorite: Learn Languages | 4.0 / 5 (1) | Free | Oct 9, 2026 | Compare |
| Submate: Dual Subtitles for YT | 5.0 / 5 (1) | Free | Aug 22, 2026 | Compare |
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