- Online dictionaries for English, French, Spanish, Italian, Chinese, Russian, Portuguese, and Polish
- Over 1 million entries in total
- Real voice audio pronunciation
- Noun and verb tables
- Definitions
- Grammar and etymology information
- Free vocabulary trainer to create personal word lists and improve vocabulary
- Two-way synchronization method to access word lists on mobile devices or desktop
- Forums to connect with other users and get help with language-related questions
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- In-app purchase for ad-free subscription
- Subscription automatically renews unless auto-renew is turned off
- Subscription can be managed and auto-renewal can be turned off in Account Settings
- Terms of Use available on the LEO website.