# Letteree: Vocabulary Builder — Remember Vocabulary Fast

> AI-powered English vocabulary builder using spaced repetition and personalized learning. (iPhone/iPad app by Hai Huynh.)

- Source: https://appshunter.io/ios/app/letteree-vocabulary-builder/id6468353154 (this page in markdown: same URL + `.md`)
- Developer: [Hai Huynh](https://appshunter.io/developer/1709784865)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 12.0 · 82 MB
- Languages: English
- Released: 2024-02-19
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/letteree-vocabulary-builder/id6468353154/reviews.md

## What is Letteree?

LETTEREE - Effective & Fast Remember English Vocabulary Builder App

Learning English vocabulary doesn’t have to feel like a chore. With Letteree, you’ll forget you’re even learning. This app intuitively guides you through the process, reminding you what, when, and how to study. Over time, you’ll naturally acquire vocabulary without feeling the weight of effort, building a deep understanding and mastery of English.

Key Features:

1. Intuitive Vocabulary Learning
Stop worrying about study schedules. Letteree intelligently manages your learning process, reminding you at optimal intervals to ensure you gradually and effortlessly retain new words.

2. Personalized Progress Tracking
Your journey is unique. Letteree tailors its recommendations based on your strengths and weaknesses, making learning efficient and enjoyable.

3. Weakness Analysis
Struggling with certain words? Our detailed Weakness Analysis provides a report of challenging vocabulary. Practice directly from these lists to turn your weaknesses into strengths.

4. AI-Powered Learning (Artificial intelligence)
Take your learning to the next level with AI: 
- See word meanings, synonyms, and contextual usage
- Explore vocabulary topics guided by AI for a fully customized experience.

5. Spaced Repetition for Lasting Memory
Forget cramming. Letteree uses scientifically proven spaced repetition techniques, helping you lock words into long-term memory.

How Letteree Works:

1. Build Your Word Bank
Add words from our library or through the search function to your personalized list.
2. Immerse Yourself in Vocabulary
Explore word meanings, watch relevant videos, and read contextual examples. Take notes for deeper understanding.
3. Practice and Play
Strengthen your memory through fun quizzes and interactive games. Reinforce learning until vocabulary becomes second nature.

Why Letteree is Perfect for all English Learners:
- Forget You’re Studying: Let the app handle when and how you learn. Over time, your vocabulary will grow effortlessly.
- Comprehensive Tools: Dictionary features, pronunciation guides, videos, and contextual examples give you a well-rounded understanding.
- Learn English vocabulary by topic, with prominent topics such as 600 essential toeic words, the most use 3000 English words, vocabulary for ielts, 8000 priority words - confident communication, commercial English vocabulary, academic vocabulary, phrasal verbs, idiom vvv
- Time-Efficient: Convenient and easy to use, learn English every day, anytime, anywhere, just 10 minutes a day, you can learn 500/1000 English words per month.
- The vocabulary learning app is designed as flashcards, complemented by various English learning games, user-friendly therefor applicable to children learning English (English for beginners) to working professionals learning English, intermediate, proficiency level, students preparing for TOEIC, IELTS vvv

Homepage: https://app.letteree.com
Privacy and policy: https://app.letteree.com/privacy
Terms of use: https://app.letteree.com/terms

## Key features

- Intuitive vocabulary learning
- Personalized progress tracking
- Weakness analysis
- AI-powered learning
- Spaced repetition
- Build word bank
- Practice and play games

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly | $7.99 | per year |
| Monthly | $1.99 | per month |


## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/letteree-vocabulary-builder/id6468353154/reviews.md

### 5/5 — Tuyệt

*2024-09-26, version 1.1.0*

Ứng dụng đầy đủ từ vựng và các dùng của mỗi từ nhưng chưa có bản dịch chuẩn chỉ có gg dịch nên hơi khó hiểu và ko có chế độ học

### 5/5 — Ứng dụng học từ vựng 100đ 💯

*2024-08-11, version 1.0.12*

Ứng dụng ổn, không giật lag, đơn giản đặt biệt hiệu quả với mình

### 4/5 — Có lỗi bé

*2024-07-31, version 1.0.12*

Tôi ko thể nghe được âm thanh!!!!

### 5/5 — Love it, great app

*2024-05-20, version 1.0.10*

The best vocabs app I’ve ever learned, strongly recommended for everyone tries this app

### 5/5 — Good app ever

*2024-01-11, version 1.0.3*

Rất hữu dụng khi dùng để luyện tập sử dụng từ vựng cũng như ghi nhớ từ, 

chỉ cần chọn từ vào học app sẽ nhắc nhở và test khả năng nhớ, quá trình này rất hữu ít cho việc học ngầm, bạn sẽ sử dụng được từ trong ngữ cảnh

### 5/5 — Useful app for learning vocab

*2023-12-18, version 1.0.2*

App có giao diện dễ sử dụng, hình ảnh gợi nhớ, cách dùng từ và ví dụ đầy đủ dễ học. Không có quảng cáo chen ngang xứng đáng 10₫

## Frequently asked questions about Letteree

### How does Letteree help users remember vocabulary?

Letteree uses scientifically proven spaced repetition techniques to schedule word reviews at optimal intervals. It also offers AI-powered insights and personalized tracking to reinforce learning and ensure long-term memory retention.

### What is the learning methodology used by Letteree?

Letteree employs an intuitive learning process that feels effortless, guiding users with intelligent reminders. It combines AI analysis, personalized recommendations, and interactive games to make vocabulary acquisition engaging and effective.

### Can Letteree track my learning progress?

Yes, Letteree provides personalized progress tracking that tailors recommendations based on your strengths and weaknesses. It also offers a detailed Weakness Analysis report to help you focus on challenging vocabulary.

### Does Letteree offer offline access?

The provided data does not specify whether Letteree offers offline access. However, its focus on daily learning and convenient use suggests it is designed for on-the-go accessibility.

### What are the subscription options for Letteree?

Letteree offers monthly subscriptions for $1.99 and yearly subscriptions for $7.99. These plans likely unlock premium features or remove limitations present in the free version.

### Is Letteree suitable for children?

Letteree is rated for ages 4+ and is described as user-friendly, making it applicable to children learning English. Its game-like features and intuitive design can appeal to younger learners.

### How often is Letteree updated?

Letteree was last updated on January 20, 2025, indicating a recent update. The app was initially released on February 19, 2024, suggesting a consistent update cycle.

### Does Letteree have ads?

Yes, Letteree contains advertisements. As a free app with in-app purchases, it utilizes ads to support its development and operations.

## Version history (last 5 releases)

### 1.2.2 — 2025-01-20

Updated layout
Fixed minor bugs

### 1.2.0 — 2024-12-31

Absolutely layout changed (consumed a lot of coffee and back-hurt)

### 1.1.3 — 2024-12-10

- Updated daily streak
- Updated notification
- Changed app icons
- Fixed minor bugs

### 1.1.2 — 2024-12-08

- Added AI features
- Added import words in bulk page 
- Added all notes shortcut
- Fixed minor bugs

### 1.1.1 — 2024-11-11

- Updated layout
- Added reminder to keep streak
- Fixed minor bugs 
- Optimize app sized

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## More apps by Hai Huynh

- [MuaNhaChua: Bạn Mua Nhà Chưa?](https://appshunter.io/ios/app/muanhachua-ban-mua-nha-chua/id6746092602)

All apps by Hai Huynh: https://appshunter.io/developer/1709784865

## Related topics

[hai hyu](https://appshunter.io/ios/topics/hai-hyu)

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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 2026-06-01.*