Learn English While Watching What You Love

Subturtle turns video captions into a powerful, real-time learning companion — letting you interact with language in context, save what matters, and build fluency on your terms.

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Watch Demo

Learn on the Go

Hover to Translate

Get real-time translations by simply hovering over any word in the captions.

Learn on the Go

Hover to Translate

Get real-time translations by simply hovering over any word in the captions.

Learn on the Go

Hover to Translate

Get real-time translations by simply hovering over any word in the captions.

Dig Deeper

Select and Explore

Highlight multiple words for smarter translations and deeper meaning.

Dig Deeper

Select and Explore

Highlight multiple words for smarter translations and deeper meaning.

Dig Deeper

Select and Explore

Highlight multiple words for smarter translations and deeper meaning.

Build Review Material

Save What Matters

Create personalized word bundles for review at your own pace.

Build Review Material

Save What Matters

Create personalized word bundles for review at your own pace.

Build Review Material

Save What Matters

Create personalized word bundles for review at your own pace.

Get Insights

Visualize Your Progress

Access a smart dashboard with your vocabulary stats and review history.

Get Insights

Visualize Your Progress

Access a smart dashboard with your vocabulary stats and review history.

Get Insights

Visualize Your Progress

Access a smart dashboard with your vocabulary stats and review history.

Test Your Memory

Practice with Flashcards

Reinforce vocabulary with spaced-repetition flashcard reviews.

Test Your Memory

Practice with Flashcards

Reinforce vocabulary with spaced-repetition flashcard reviews.

Test Your Memory

Practice with Flashcards

Reinforce vocabulary with spaced-repetition flashcard reviews.

Get Confident

Speak with AI Coach

Practice conversations with your saved words and get speaking confidence.

Get Confident

Speak with AI Coach

Practice conversations with your saved words and get speaking confidence.

Get Confident

Speak with AI Coach

Practice conversations with your saved words and get speaking confidence.

Built for Your Digital Life

Subturtle blends learning into your everyday screen time—you grow your English without hitting pause on your routine.

Subturtle Learners Level Up Faster

It doesn’t teach, it's not a classroom—you experience English while enjoying your digital life.

Learn in Context

Real-Life, Real Language

Master words and expressions in the context they’re actually used.

Learn in Context

Real-Life, Real Language

Master words and expressions in the context they’re actually used.

Learn in Context

Real-Life, Real Language

Master words and expressions in the context they’re actually used.

Easy to Use

Learning that Fits In, Not Stands Out

Seamlessly integrates with the streaming apps you already use daily.

Easy to Use

Learning that Fits In, Not Stands Out

Seamlessly integrates with the streaming apps you already use daily.

Easy to Use

Learning that Fits In, Not Stands Out

Seamlessly integrates with the streaming apps you already use daily.

Redefined Streaming

From Watching to Engaging

No more passive screen time—Subturtle turns your scrolls into skills.

Redefined Streaming

From Watching to Engaging

No more passive screen time—Subturtle turns your scrolls into skills.

Redefined Streaming

From Watching to Engaging

No more passive screen time—Subturtle turns your scrolls into skills.

Learn It Your Way

Personalized Reinforcement

Save, review, and reuse vocabulary in ways that match your memory.

Learn It Your Way

Personalized Reinforcement

Save, review, and reuse vocabulary in ways that match your memory.

Learn It Your Way

Personalized Reinforcement

Save, review, and reuse vocabulary in ways that match your memory.

From Subtitles to Fluency

Interact with captions, learn new words, and build real English skills—right from your favorite shows and videos.

Start Subturtle

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Flexible Plans for Every Learner

Start for free, upgrade when you're ready to go deeper.

Freemium

Great for casual learners

$0.00

per month

Translate captions in real time

Save up to 30 words or phrases

Review vocabulary on your dashboard

AI Coach (up to 3 sessions/month)

Get started

Freemium

Great for casual learners

$0.00

per month

Translate captions in real time

Save up to 30 words or phrases

Review vocabulary on your dashboard

AI Coach (up to 3 sessions/month)

Get started

Freemium

Great for casual learners

$0.00

per month

Translate captions in real time

Save up to 30 words or phrases

Review vocabulary on your dashboard

AI Coach (up to 3 sessions/month)

Get started

BEYOND LIMITS

Pro

Ideal for focused learners

$9.99

per month

Unlimited saves & bundle creation

Unlimited flashcard reviews

On-demand AI speaking practice

Early access to new platforms & features

Get started

Pro

Ideal for focused learners

$9.99

per month

Unlimited saves & bundle creation

Unlimited flashcard reviews

On-demand AI speaking practice

Early access to new platforms & features

Get started

Pro

Ideal for focused learners

$9.99

per month

Unlimited saves & bundle creation

Unlimited flashcard reviews

On-demand AI speaking practice

Early access to new platforms & features

Get started

Frequently Asked Questions

What platforms does Subturtle support?

Can I use Subturtle to learn languages other than English?

Is there a trial period for Pro?

Can I review saved words on mobile?

Is the AI coach actually useful?

How is this better than just using Google Translate or extensions?

What platforms does Subturtle support?

Can I use Subturtle to learn languages other than English?

Is there a trial period for Pro?

Can I review saved words on mobile?

Is the AI coach actually useful?

How is this better than just using Google Translate or extensions?

Get in Touch

Report a bug, give us feedback, or let us know your love :)

Start Your Journey Now.

Get Extension

Start Subturtle