# Flexi: Vocabulary Flashcards — Language learning with AI

> AI-powered flashcards for personalized vocabulary building and language learning. (iPhone/iPad app by Tomer Beilinson.)

- Source: https://appshunter.io/ios/app/flexi-vocabulary-flashcards/id6499282610 (this page in markdown: same URL + `.md`)
- Developer: [Tomer Beilinson](https://appshunter.io/developer/1743082463)
- Category: Education
- Price: Free with in-app purchases
- Rating: 4.80/5 from 133 App Store ratings · 45 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 67 MB
- Languages: American English, Arabic, French (France), German (Germany), Hebrew, Russian, European Spanish
- Released: 2024-07-30
- Data updated: 2026-09-02
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/flexi-vocabulary-flashcards/id6499282610/reviews.md

## What is Flexi?

Flexi is an AI-powered vocabulary builder and language-learning flashcard app that turns a word or short expression into ready-to-study cards in seconds. Compare options for different meanings, edit any detail, and save one or several cards to your deck.

Each AI-generated flashcard can include a translation, contextual example, definition, part of speech, and—where supported—a written pronunciation guide. Flexi then schedules reviews with FSRS-powered spaced repetition to help you remember vocabulary long term.

WHY LEARN WITH FLEXI?

- AI Flashcard Maker: Enter a word or short expression and get several editable card options for relevant meanings.

- Complete Vocabulary Cards: Generate translations, examples, definitions, parts of speech, and pronunciation guides based on your deck’s language and settings.

- Pronunciation Guides: Generate IPA for English, Spanish, German, Dutch, Czech, Finnish, and Romanian; kana for Japanese; Pinyin or Zhuyin for Mandarin Chinese; and Jyutping for Cantonese.

- Spaced Repetition: Study and memorize new words with FSRS-based scheduling that plans reviews at the right time.

- Text-to-Speech Audio: Hear words and examples to practice listening and pronunciation.

- Flexible Card Creation: Add one card, select several meanings at once, or paste a word list to create flashcards in bulk.

- Easy Imports: Bring your existing study decks from Anki, Quizlet, or CSV files.

- English Vocabulary Sets: Start learning immediately with curated, ready-made word sets.

- Quick Notes: Save words you meet in videos, books, or conversations and turn them into flashcards later.

- Track Your Progress: Follow your learning progress and study comfortably with Dark Mode.

FLEXI PREMIUM

- Interactive AI Language Tutor: Ask questions about any flashcard, explore nuances, and practice fill-in-the-blank exercises at your level.

- AI and Personal Images: Generate or upload images to strengthen visual memory.

- Topic-Based Vocabulary: Build word sets for travel, business, idioms, small talk, and more.

- Full Catalog Access: Unlock all curated English vocabulary sets.

SUPPORTED LANGUAGES

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

Try Flexi Premium free for 7 days and build a vocabulary study system that fits your goals.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Personalized flashcard creation
- AI-powered translations and definitions
- Spaced repetition system
- Text-to-speech pronunciation
- Offline study mode
- Progress tracking
- CSV import/export

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly | $5.99 | per month |
| Premium Monthly | $5.99 | per month |
| Premium Annual | $29.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Lifetime | $99.99 | one-time |


## Recent user reviews (10 of 45)

All indexed reviews: https://appshunter.io/ios/app/flexi-vocabulary-flashcards/id6499282610/reviews.md

### 5/5 — A few…

*2026-08-30*

Honestly, with this new update, the app feels so much more alive especially with the pronunciation feature. Really hoping the dev keeps this momentum going and drops even more cool stuff. But I do have one suggestion: give us more flexibility with languages. The current list is kinda limited, and since iPhones already have built-in voices, why not let us manually add words outside the default options? Especially in the translation section ,users could add their own definitions. That would totally remove the barrier that's probably stopping a lot of people from subscribing. Plus, flashcards could be used for everything - math, physics, chem, or even bio stuff that needs images. So yeah, please add more customization options. Appreciate you reading this!

**Developer response:** Thank you for your feedback! Persian isn't currently supported by the Gemini AI models used in the app. I'm monitoring updates and hope to include it as soon as it's available. Appreciate your patience!

### 5/5 — A few…

*2026-08-19*

Honestly, with this new update, the app feels so much more alive especially with the pronunciation feature. Really hoping the dev keeps this momentum going and drops even more cool stuff. But I do have one suggestion: give us more flexibility with languages. The current list is kinda limited, and since iPhones already have built-in voices, why not let us manually add words outside the default options? Especially in the translation section ,users could add their own definitions. That would totally remove the barrier that's probably stopping a lot of people from subscribing. Plus, flashcards could be used for everything - math, physics, chem, or even bio stuff that needs images. So yeah, please add more customization options. Appreciate you reading this!

**Developer response:** Thank you for your feedback! Persian isn't currently supported by the Gemini AI models used in the app. I'm monitoring updates and hope to include it as soon as it's available. Appreciate your patience!

### 5/5 — Need Chinese language support

*2026-08-05*

thanks！

**Developer response:** Thanks for your feedback! Decks should sync between iOS & Mac if you're logged into the same account. Please double-check this. If it's the same account and the issue persists, please email me at tomer@flexicards.app so I can investigate.

### 5/5 — Right to the point

*2026-06-24*

Yes, there are other flashcard apps out there that have every bell and whistle you can think of—but they’re clunky, complicated, and frankly not pleasant to use. Flexi eliminates all of those frustrations and just gets you practicing faster, easier, and in a more fun way. Love this app!

**Developer response:** Thank you! I'm happy to hear Flexi has been a good fit for your learning.

### 5/5 — we need Chinese

*2026-03-07*

plz update Chinese language support

**Developer response:** Thanks for your feedback! Decks should sync between iOS & Mac if you're logged into the same account. Please double-check this. If it's the same account and the issue persists, please email me at tomer@flexicards.app so I can investigate.

### 5/5 — The best learning app in my life

*2026-02-04, version 2.14.0*

Progress is obvious. I love it!

### 4/5 — Can you add Greek?

*2026-02-01*

I love how there are so many language choices, but I realize this app doesn’t have Greek on the list, and that is the one language I would like to learn right now. If you add it, I would be very grateful!

**Developer response:** Thank you so much! We’re glad you like the language selection. Greek isn’t supported yet, but we really appreciate your suggestion and will keep it in mind for future updates.

### 1/5 — Many Bugs, Ignored User Feedback👎🏻

*2026-01-31*

This application had a good idea, but the execution is terrible. On top of numerous problems and bugs, the developer completely ignores user feedback. It quickly becomes clear that the app was rushed together with minimal effort just to make quick money. I am warning potential buyers to think very carefully before purchasing an app that contains many bugs and shows such disregard for users. The app does not allow selecting a target language, and the AI generates examples in only one language. Image generation is completely disconnected from the generated examples. You cannot choose multiple translation options for a word, only a single one, and after selecting it, you generate examples. For instance, the example may describe a ship sailing at sea, but when you generate an image, you get a dog sitting in a tree. There is no logical connection between the text and the image. Overall, this is a chaotic product with poor implementation and an unresponsive developer.
———
Esta aplicación tenía una buena idea, pero la implementación es terrible. Además de numerosos problemas y errores, el desarrollador ignora por completo los comentarios de los usuarios. Rápidamente queda claro que la aplicación fue hecha con prisa y con un esfuerzo mínimo para obtener dinero rápidamente. Advierto a los posibles compradores que piensen muy bien antes de adquirir una aplicación con tantos errores y una actitud tan poco respetuosa hacia los usuarios. La aplicación no permite elegir el idioma objetivo, y la inteligencia artificial genera ejemplos solo en un idioma. La generación de imágenes está totalmente desconectada de los ejemplos generados. No se pueden elegir varias opciones de traducción para una palabra, solo una, y después de seleccionarla se generan los ejemplos. Por ejemplo, el texto puede describir un barco navegando por el mar, pero al generar la imagen aparece un perro sentado en un árbol. No existe ninguna relación lógica entre el texto y la imagen. En general, es un producto desordenado, mal implementado y con un desarrollador que no responde.

### 5/5 — Tolle App

*2026-01-22, version 2.13.0*

Die App ist wirklich toll und leicht anzuwenden. Tolles Konzept!

### 5/5 — Love it!

*2026-01-19*

Really useful and easy to use! I hope you keep on improving the app.

**Developer response:** Thank you! I really appreciate your support and will keep making it better 😊

## Frequently asked questions about Flexi

### What does Flexi: Vocabulary Flashcards do?

This app helps you expand your vocabulary and improve language skills by creating and memorizing personalized flashcards. It uses AI to provide translations, definitions, and examples, and employs spaced repetition for effective long-term retention.

### What are the key features of Flexi?

Key features include an effortless flashcard maker, AI assistance for word details, pre-made English word sets, spaced repetition, text-to-speech for pronunciation, CSV import/export, various study modes, dark mode, widgets, progress tracking, and offline mode.

### How much does Flexi cost?

The app offers a freemium model. Users can access basic features for free. Flexi Premium unlocks advanced features like image generation, word suggestions, and seamless imports from Anki & Quizlet, with a 7-day free trial available.

### What languages does Flexi support?

Flexi supports a wide range of languages including English, Spanish, French, German, Dutch, Japanese, Korean, Chinese (Simplified & Traditional), Italian, Portuguese, Russian, Arabic, Turkish, Swedish, Danish, Norwegian, Polish, Ukrainian, Hungarian, Czech, Thai, Hebrew, and Vietnamese.

### Can I use Flexi offline?

Yes, the app offers an offline mode, allowing you to continue studying your vocabulary anytime and anywhere, even without an internet connection.

## Version history (last 5 releases)

### 3.6.2 — 2026-08-30

• Improvements & Fixes

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

Have feedback or found a bug? Let me know at tomer@flexicards.app!

### 3.6.1 — 2026-08-24

• Improvements & Fixes

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

Have feedback or found a bug? Let me know at tomer@flexicards.app!

### 3.6.0 — 2026-08-19

• Pronunciation in Card Editor

You can now generate pronunciation while editing an existing card for supported languages.

• More Control Over Card Generation

Choose whether examples, definitions, pronunciation, and part of speech are generated automatically for each deck.

• Improvements & Fixes

Various small improvements and bug fixes for a smoother experience.

Have feedback or found a bug? Let me know at tomer@flexicards.app!

### 3.5.0 — 2026-08-04

• A New Way to Create Cards
Enter a word or short expression and Flexi now generates complete card options automatically. Explore different meanings, choose your favourites, and add several cards to your deck at once.

• Part of Speech
Newly generated cards now include their part of speech, helping you understand how each word is used.

• Pronunciation
Newly generated cards can now include pronunciation where available: IPA (the International Phonetic Alphabet) for English, Spanish, German, Dutch, Czech, Finnish, and Romanian; kana for Japanese; and Pinyin or Zhuyin for Mandarin Chinese. Cantonese cards use Jyutping.

• Redesigned Deck Settings
We’ve refreshed deck settings to make it easier to tailor your learning preferences in one place.

• A More Personal Start
We’ve redesigned onboarding to help new learners set up their preferences and create their first cards right away.

• Improvements & Fixes
Various small improvements and bug fixes for a smoother experience.

Have feedback or found a bug? Let me know at tomer@flexicards.app!

### 3.4.8 — 2026-07-06

• Premium Subscription Fix

Fixed an issue where active Premium subscriptions could temporarily appear inactive.

Have feedback or found a bug? Let me know at tomer@flexicards.app!

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*