About this app
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!
Latest release
What’s New
fixed bugs added username editing
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 4, 2026 · 7:30 AM Free
Screenshots
