Transform English words into
practical knowledge
Master TOEIC, TOEFL, and IELTS vocabulary efficiently with example sentences and diverse test formats. Learn not just meanings, but how to use words in real contexts.
comprehensive
complete, thorough, all-inclusive
"The report provides a comprehensive analysis of market trends."
Leto Features
Innovative learning system to master English vocabulary effectively
Deepen understanding with example sentences
All words include natural English example sentences. Learn how words are used in real contexts.
Diverse test formats
Three test types: multiple choice, sentence rearrangement, and card format to strengthen memory retention and application skills.
Reliable memory retention
Achieve 'learned' status after two consecutive correct answers. Don't settle for one correct answer - repeat until you truly remember.
Understand with English definitions
English definitions are also displayed. Understand word meanings with native speaker intuition.
Multiple Choice
What does "abandon" mean?
Sentence Rearrangement
Arrange the words in correct order
Card Format
Tap to see meaning
Supported Tests
Carefully selected high-frequency vocabulary for major English tests
TOEIC
Comprehensive vocabulary covering business English and daily conversation. Perfect for improving practical English skills.
TOEFL
Carefully selected academic vocabulary. Build advanced vocabulary skills needed for university study and research.
IELTS
Wide range of academic and general English vocabulary for study abroad and immigration.
Pricing
Start free, upgrade to premium for even more efficiency
Free Plan
$0
Free forever
- Learn up to 20 words per day
- Access to all learning features
- TOEIC/TOEFL/IELTS support
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Premium
$48/year
- First week free
- Unlimited learning
- No advertisements
- Priority support
Start improving your vocabulary with Leto today
Master real vocabulary skills with example sentences and tests, and efficiently prepare for TOEIC, TOEFL, and IELTS
