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4000 Flashcards English

The final goal

Four thousand words: the vocabulary needed to function as a fluent speaker.

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4000 Flashcards English mockup

Key features

✓

4000 SRS words

✓

Final route goal

✓

Audio and examples

✓

Mastery certificate

How it works

1

Download free

Install the app from Google Play or join the early access list.

2

Practice anywhere

Everything works 100% offline — on the bus, at home, anywhere.

3

Track your progress

Follow your results with clear statistics and improve every day.

What's included

Free vs Premium Price: $0 USD
Free
  • • Full app content
  • • Unlimited practice
  • • Progress tracking
  • • 100% offline
Premium (optional)
  • • No ads
  • • Supports development
  • • Extra features per app

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500 words. One app. Fluency starts here.

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The next level of the SRS route: 1000 English words.

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1500 words: intermediate vocabulary with spaced repetition.

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Join the 4000 Flashcards English waitlist

Get early access and free content before launch.

You can also email us at developer.wws.cl@gmail.com

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