langTube - Learn with AI

Contains adsIn-app purchases
2.2
83 reviews
10K+
Downloads
Content rating
Mature 17+
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About this app

Enhance your language skills with YouTube and AI.
A joyful language learning app is now available!

I've been studying a new language for a long time, but I'm still not good at listening.
I've never had a chance to actually speak and listen.

langTube has a useful dual subtitles player and AI assistant for YouTube.
AI finds difficult language, then creates flashcards and generates a YouTube video summary!

The method we propose is simple.

Learn authentic English from your favorite YouTubers, artists, and bloggers.
Learn real English used in your favorite videos.
Watch the video with subtitles and practice shadowing.

Learn the vocabulary and phrases you want to memorize.
Save the words and phrases you want to memorize as flashcards.

Practice the phrases and words on the flashcards.
Review what you have learned.

Repeat until you can naturally speak your favorite phrases.

By continuously learning with LangTube, you can significantly improve your language skills.

To learn to swim well, you need to get in the water and practice, not just take an online course.
The same is true for English conversation.
Practice by speaking out loud, rather than passively listening to an online course.

The most important thing is to create a habit of persistence.
LangTube makes this achievable.

List of features (some features are only available with Premium)

Dual subtitle YouTube player
Quick dictionary
Save words as flashcards
Download subtitles and translations as PDF files
Import YouTube data
Learning time notifications
Premium Membership

Enhance your learning experience with LangTube Premium.
Get unlimited features,
Save as many words and sentences as you like without ads.
We hope you enjoy the app with Premium.

Your LangTube Premium subscription will be charged to your App Store account and will auto-renew 24 hours before your current subscription expires.
After purchase, auto-renewal can be canceled at any time in the App Store.
The current subscription fee for LangTube Premium is US$3.49 per month.
LangTube is available for free without a Premium subscription.

- Privacy Policy: https://langtube.app/#privacypolicy
- Terms and Conditions: https://langtube.app/#terms
Updated on
Jun 24, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

1.6
77 reviews
Aryel L.
December 10, 2024
I've been testing similar apps for a while, and they usually tend to be laggy. langTube has managed to break out of that cycle, but still lacks when it comes to the interface. And although you can add individual words to a deck, you can't select them together in a sentence. That aside, it would be interesting to have a Spaced Repetition System integrated with the flashcards as well. Until then, you're better off downloading the subs directly from YouTube and adding the new vocab to Anki for free
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Petrina Ropra
May 23, 2024
Had to uninstall cause it was slow. Please add a looping function to each subtitle line so that we can loop the same sentence 5 times to get familiar with the sound of the sentences.
1 person found this review helpful
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Manhattan DC
September 14, 2023
If this is about helping people learn the language they need to learn, Then why do you pick the language for us, I wanted Afrikaans but it was not there. Worst app ever.
16 people found this review helpful
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WASTE.inc
October 17, 2023
Hello Manhattan DC we're sorry that you have not been able to select your language which you want to learn. We plan to increase the number of supported languages.

What’s new

We're always making changes and improvements to langTube. To make sure you don't miss a thing, just keep your Updates turned on.

App support

About the developer
山内晨吾
info.langtube@gmail.com
沼袋3丁目24−20 中野区, 東京都 165-0025 Japan