Target 400 English Vocabulary

This is a vocabulary learning app designed for anyone who wants to build a solid foundation in English as quickly as possible—from complete beginners to learners aiming to boost their test scores.
The app includes 1,000 essential English words specifically selected for learners targeting approximately a 400-point level in English proficiency tests (e.g., TOEIC® L&R Test). (Some content requires an in-app purchase.)
Every word comes with a learning guide, example sentences, synonyms, antonyms, and common collocations to help you progress from understanding to mastery.

◆ Strengthen Pronunciation & Listening with Native Audio

Native audio included for all words

Improve your pronunciation and strengthen your listening skills at the same time

◆ Efficient Memorization with Flashcards

Optimized flashcard UI to quickly review the key information

Perfect for repeated review during short breaks

◆ “Memory That Sticks” with the Forgetting Curve × SM-2 Algorithm

Automatically schedules review timing based on brain science

Prevents the “I thought I remembered it…” problem

Helps you build a consistent and efficient learning habit

◆ Target Proficiency Levels (Reference)

Around 400 points on English proficiency tests (e.g., TOEIC®)

CEFR A1–A2 (Beginner)

◆ Main Features

1,000 essential English words for the 400-point level (some content requires in-app purchase)

Detailed learning guides for every word

Deep understanding via example sentences, synonyms, antonyms & collocations

Native audio for pronunciation & listening development

Flashcards designed for fast memorization

Science-based learning with the SM-2 algorithm

CEFR A1–A2 level optimized for beginner learners

◆ Recommended For

Learners aiming for CEFR A1–A2 level

English beginners who want structured learning from scratch

Anyone who wants to quickly strengthen their basic vocabulary

Learners who want to train pronunciation and listening efficiently

Those who struggle to memorize vocabulary

People who want to study in short spare moments

This app is ideal for those who are just starting to learn English, who struggle with reading and listening, or who want to build a solid foundation in a short period.
Start building your English foundation today!

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Free Version: 200 words
Premium Version (One-time in-app purchase): 1,000 words
All words and learning cont