# Duo ABC — Phonics, Tracing & Shapes > English learning app for 10th graders with offline access and interactive tests. (iPhone/iPad app by nguyen thanh.) - Source: https://appshunter.io/ios/app/duo-abc/id1594001123 (this page in markdown: same URL + `.md`) - Developer: [nguyen thanh](https://appshunter.io/developer/1481436893) - Category: Education, Games, Trivia, Word - Price: Free with in-app purchases - Rating: 4.60/5 from 20 App Store ratings - Age rating: 4+ - Requires: iOS 15.0 · 262 MB - Languages: British English, Arabic, French (France), Indonesian, Vietnamese - Released: 2022-09-01 - Data updated: 2026-09-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/duo-abc/id1594001123/reviews.md ## What is Duo ABC? # Duo ABC 123 Learn Letters With **Duo ABC 123 Learn Letters**, children can build essential early learning skills through fun and interactive activities. The app helps young learners explore the English alphabet (ABC), numbers (123), shapes, colors, and other preschool basics in an engaging way. Designed for early learners, the app makes learning simple with bite-sized lessons and educational games. Children can practice recognizing letters, learning numbers, counting, identifying shapes, and discovering colors while having fun. Instead of relying only on books or worksheets, the app provides an interactive learning experience on phones and tablets, making daily practice enjoyable and motivating. Whether your child is just starting to learn the alphabet, practicing numbers, exploring basic geometry, or preparing for preschool and kindergarten, **ABC 123 Learn Letters** is a great companion for early education. ## Key Features * Learn the English alphabet (ABC) through fun activities. * Practice numbers (123) and basic counting skills. * Discover basic shapes such as circles, squares, and triangles. * Learn colors with engaging visual activities. * Build early reading and writing readiness. * Short, easy-to-follow lessons for daily practice. * Interactive educational games that make learning enjoyable. * Simple, child-friendly interface. * Many lessons are available offline. Start learning today with **Duo ABC 123 Learn Letters**—the perfect companion for learning letters, numbers, shapes, and colors through fun educational activities. Please read our Terms of Use: https://thanhbkap.github.io/M4U-Term-And-Use/ ## Key features - Offline Access - Interactive Tests - Self-paced Learning - Teacher-Friendly Interface - Grade 10 English Mastery ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Three Months VIP | $1.49 | per 3 months | | Learning Premium Monthly Plan | $1.99 | per month | | Learning Premium HalfYear Plan | $5.99 | per 6 months | | Learning Premium Annual Plan | $9.99 | per year | | 1 Year VIP | $24.99 | per year | | Six Months VIP | $24.99 | per 6 months | | One Month VIP | $4.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | No ads Pack | $14.99 | one-time | ## Frequently asked questions about Duo ABC ### What is the learning methodology used by Duo ABC? Duo ABC focuses on effective English mastery for 10th graders through interactive tests and lessons. Students can progress at their own pace, making learning convenient and efficient. ### How does Duo ABC track student progress? The app allows students to take tests directly within the application, providing immediate feedback on their performance. This interactive approach helps in gauging and improving their English skills. ### Does Duo ABC offer any certifications upon completion? The provided information does not mention any specific certifications offered by Duo ABC upon completion of its learning modules. ### What are the subscription options for Duo ABC? Duo ABC offers several subscription plans including Three Months VIP ($1.49/P3M), Learning Premium Monthly Plan ($1.99/P1M), One Month VIP ($4.99/P1M with a 3-day free trial), Learning Premium HalfYear Plan ($5.99/P6M), and Learning Premium Annual Plan ($9.99/P1Y). ### Can I use Duo ABC without an internet connection? Yes, Duo ABC features offline access, allowing students to learn and take tests without an internet connection, making it accessible anywhere. ### Is Duo ABC suitable for younger students? Duo ABC is specifically designed for 10th-grade students to enhance their English skills. While it has an age rating of 4+, its content is tailored for this specific academic level. ### How often is Duo ABC updated? The latest version of Duo ABC is 1.0.66, and it was last updated on March 25, 2026. This indicates a recent update, suggesting ongoing development and support. ### What devices are supported by Duo ABC? Duo ABC is available on iPhones and iPads, making it accessible for students using Apple mobile devices. ## Version history (last 5 releases) ### 1.0.73 — 2026-08-27 Bug fixes and performance improvements ### 1.0.72 — 2026-08-20 Bug fixes and performance improvements ### 1.0.71 — 2026-07-31 Bug fixes and performance improvements ### 1.0.70 — 2026-07-06 Bug fixes and performance improvements ### 1.0.69 — 2026-06-26 Bug fixes and performance improvements ## Apps similar to Duo ABC | App | Rating | Price | Category | | --- | --- | --- | --- | | [6th Grade English](https://appshunter.io/ios/app/6th-grade-english/id1594000768) | 4.3 (41) | Free | Education | | [5th Grade English](https://appshunter.io/ios/app/5th-grade-english/id1572911248) | 4.5 (163) | Free | Education | | [Spelling Bee: English Words](https://appshunter.io/ios/app/spelling-bee-english-words/id1466630827) | 4.6 (1,907) | Free | Education | | [EWA: Learn Languages](https://appshunter.io/ios/app/ewa-learn-languages/id1200778841) | 4.7 (193,800) | Free | Education | | [8th Grade Learning Games](https://appshunter.io/ios/app/8th-grade-learning-games/id1592536348) | 3.2 (5) | Free | Education | | [10th Grade Math Challenge](https://appshunter.io/ios/app/10th-grade-math-challenge/id1537491277) | 5.0 (3) | Free | Education | ## More apps by nguyen thanh - [Sudoku ▢](https://appshunter.io/ios/app/sudoku/id1526012921) - [GhostShot - Be Stronger Man](https://appshunter.io/ios/app/ghostshot-be-stronger-man/id1527234910) - [Word of Wonders](https://appshunter.io/ios/app/word-of-wonders/id1532245305) - [Word tag](https://appshunter.io/ios/app/word-tag/id1533978093) - [Stock x Investor](https://appshunter.io/ios/app/stock-x-investor/id1551616294) - [Smart - Thách thức thông minh](https://appshunter.io/ios/app/smart-thach-thuc-thong-minh/id1551752289) All apps by nguyen thanh: https://appshunter.io/developer/1481436893 ## Related topics [vuihoc thpt](https://appshunter.io/ios/topics/vuihoc-thpt) · [abc123 learning](https://appshunter.io/ios/topics/abc123-learning) --- *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 2026-09-01.*