Calleo: Learn Words with AI

AI-Powered Vocabulary Games

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

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!

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Slight rebranding and bug fixes

Version 1.0.6

The developer, Viacheslav Stetsenko, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Viacheslav Stetsenko
Size
  • 45.7 MB
Category
  • Education
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 Viacheslav Stetsenko
  • Developer Website
  • Privacy Policy