Calleo: Learn Words with AI

Transform your language learning journey with Calleo — the smart, interactive vocabulary app that makes mastering new languages enjoyable and effective!

FOUR ENGAGING GAME MODES • Flashcards: Flip through vocabulary with smooth animations • Quiz: Test yourself with multiple choice challenges • Match: Speed-based card pairing game • Fill in the Blank: Learn words in context with AI-generated sentences

AI-POWERED TOOLS • Generate entire vocabulary sets by topic with one tap • Smart hints and context-aware suggestions during practice • AI-crafted sentences to deepen your understanding

MASSIVE LANGUAGE SUPPORT • Practice any of 40+ languages • App interface available in 45 languages • Mix any language combination — Spanish/English, Japanese/French, and more

SMART SET MANAGEMENT • Create custom vocabulary sets with up to 20 word pairs • Import words in bulk from text or CSV • Share sets with friends via a simple share code • Copy sets shared by others into your library

FLEXIBLE ACCOUNT OPTIONS • Guest mode — start learning instantly, no sign-up required • Create an account to sync your sets across devices • All your data securely stored and backed up

BEAUTIFULLY DESIGNED • Dark and light mode support • Clean, distraction-free interface • Smooth animations for a delightful experience • Fully responsive for all iPhone sizes

Whether you're a student, traveler, professional, or language enthusiast, Calleo gives you the tools to build vocabulary fast and retain it longer.

Download Calleo and start your language journey today!