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!

SIX 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 • Listening: Train your ear with spoken-word audio challenges • Writing: Type the translation to lock words into memory

WORD TINDER & LEARNING PATH • Swipe through your vocabulary — mark words as known or still-learning • Follow a guided CEFR path (A1 to C2) with sets generated as you level up • Spaced repetition keeps due words resurfacing at the right time

AI-POWERED TOOLS • Generate entire vocabulary sets by topic with one tap • Scan a photo — a textbook page, sign, or menu — and turn it into a vocab set instantly • Paste in any text and let AI pull out the key words • AI-crafted example sentences to deepen your understanding • Native audio pronunciation for every word

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, CSV, or a photo • 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 across mobile, tablet, and desktop

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!