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App Store Apps > Education > duoBooks: Language Learning
duoBooks: Language Learning icon

duoBooks: Language Learning

by PlainProg LLC · Education · Free
On the App Store since November 2020 · Data updated 2026-10-13
App Store

duoBooks: Language Learning is made and published by PlainProg LLC. AppBrain is an independent app data site and isn't affiliated with PlainProg LLC. The app name, icon, screenshots and description belong to PlainProg LLC and are shown as published on the App Store.

AppBrain's verdict

Established
Rating on App Store
4.73
55 ratings
Last updated
October 12, 2026

It doesn't have enough ratings yet to judge what users think.

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Releases

Updates seen on the App Store
Version
7.2
Launched
November 2020

No changelog data

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Ratings and reviews on the App Store

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Technology

Found in the app by AppBrain
Price
Free
App size
52.8 MB
Content rating
Medium

Technologies used by duoBooks: Language Learning

About the app and developer

About duoBooks: Language Learning

duoBooks: Language Learning is an education app developed by PlainProg LLC.

User Ratings

duoBooks: Language Learning is rated 4.73 out of 5 stars. The rating is based on 55 ratings.

App Information

duoBooks: Language Learning is freely available from the App Store. The app size is 52.83 MB. The latest version available is 7.2. The last update was on October 12, 2026.

Technical Requirements

The app has a content rating of Medium Maturity. The app has been available on the App Store since November 2020.

Developer information for PlainProg LLC

PlainProg LLC

Address:

Share duoBooks: Language Learning

Store listing

By PlainProg LLC, from the App Store
duoBooks: Language Learning Screenshot 1 of 7
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Screenshots by PlainProg LLC, from the the App Store listing
Description by PlainProg LLC Written by the developer, not by AppBrain. Click to read.
Read any book in any language with instant translation into your native language.

We offer short stories designed specifically for beginner language learners. Alternatively, you can add any book from your device and read with translation whatever you want.

Break any sentence into clear pieces and see every word explained in context. Instantly understand how the sentence works, what each word means, and how it fits into the full translation.

In our app, you will also have your personal dictionary where you can keep your vocabulary in one place and easily review it whenever you want.

Mastering correct pronunciation is key to language acquisition. In our app, you can listen to audio voiceovers of every sentence or word to hear it pronounced accurately. Immerse yourself in language learning with ease.

To learn words, we provide a Spaced Repetition tool. With it you can review words at increasing intervals, ensuring long-term retention and mastery. Swipe through word flashcards effortlessly to build a robust vocabulary and make memorizing words a seamless part of your daily routine. Build your English vocabulary.

Many people who are not native English speakers use our app as epub reader to read scientific materials or programming books in English. As long as you have an EPUB file for what you want to read, our app is the best choice.

Our bilingual book reader is designed to enhance your language proficiency one page at a time. Practice and study foreign languages by reading parallel texts where every sentence is translated into your native language.

Reading books with translation is a proven method for language learners to improve their reading comprehension, expand their vocabulary, and gain a deeper understanding of grammar structures.

Read with translation any EPUB ebook from your device, or choose from our library with 3000+ books and short stories.

Reading enhances your creativity, imagination, and empathy. Moreover, reading has been shown to reduce stress, improve mental health, and increase our overall well-being. Dive into a world of dual-language storytelling.

Don't just take our word for it - hear what our users have to say: "This app has revolutionized my language study! I use it with my own EPUB files in a language I am studying. The interface is intuitive. It's also very fast to use and provides a smooth experience during long reading sessions."

Read in English, German, French, Spanish, Italian, or any other language, build your vocabulary, and improve your grammar skills. With our cross-language ebook reader, translate books on the fly and listen to voiceovers of any sentence or word in your book. Best bilingual reading app available.

With duoBooks you will:
- Take control of your language learning journey and achieve your goals faster and easier than ever before.
- Improve speaking by listening to how words and phrases are pronounced correctly.
- Easily incorporate reading into your daily routine and reap the numerous benefits of this powerful skill, all while you learn English (or other languages).
- Read English books with translation (or Spanish, French, etc.) easily even if it's not your native language.
- Study words with scientifically proven technique (Spaced repetition). Swipe word cards and enjoy the process. Smart Interval system is as effective for memorizing words as English lessons.

duoBooks offers short stories specifically created for beginners. They use simple vocabulary, repetitive words, simple dialogues, and uncomplicated sentences.

Alternatively, we have a vast selection of classic literature. From the works of Edgar Allan Poe to the novels of Jane Austen. With over 3000+ classic ebooks available and the ability to import your own files, you'll never run out of options to practice your language skills. Whether you're a beginner or an advanced learner, duoBooks is your app for language learning success. Start your journey today with our free language learning app!
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