Flexi: Vocabulary Flashcards

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Content rating
Everyone
500+
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Content rating
Everyone
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About this app

Flexi helps you build vocabulary with flashcards, AI-assisted card creation, and spaced repetition.

Create your own language learning decks, add words you want to remember, and study them with a review system designed to bring cards back at the right time. Flexi can help generate translations, definitions, and example sentences, so you can spend less time preparing cards and more time learning.

What you can do with Flexi:

• Create vocabulary flashcards
Add words, translations, examples, definitions, and images to your cards.

• Generate card content with AI
Enter a word and let Flexi help with translations, definitions, and contextual examples.

• Study with spaced repetition
Review cards over time and focus on the words that need more practice.

• Listen with text-to-speech
Use audio playback to hear how words and examples sound.

• Import existing cards
Bring in vocabulary from Anki, Quizlet, or CSV files.

• Create cards in bulk
Paste a list of words and let Flexi help fill in the missing details.

• Learn with ready-made English word sets
Browse curated English vocabulary sets by level and topic.

• Save quick notes
Write down new words from videos, books, lessons, or conversations, then turn them into flashcards later.

• Study comfortably
Track your progress, use dark mode, and keep reviewing even when you are offline.

Flexi Premium includes:

• AI image generation and personal image uploads
• Interactive AI Tutor for explanations, examples, nuance, and practice
• Topic-based vocabulary generation
• Full access to ready-made English word sets
• Premium import features for supported formats

Supported languages:

English, Spanish, French, German, Dutch, Japanese, Korean, Chinese Simplified, Chinese Traditional, Italian, Portuguese, Russian, Arabic, Turkish, Swedish, Danish, Norwegian, Polish, Ukrainian, Hungarian, Czech, Thai, Hebrew, Vietnamese, Finnish, Romanian, and Serbian.

Flexi is designed for language learners who want a simple way to create, organize, and review vocabulary flashcards.
Create AI language flashcards and remember words with spaced repetition.
Updated on
May 31, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info, Financial info and 4 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

• Improvements & Fixes

Various small UI improvements and bug fixes for a smoother experience.