Comparison

duoBooks vs Learn Languages

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

duoBooks

Read any book in any language with instant translation and detailed word explanations. Build your vocabulary with a personal dictionary and spaced repetition tools. Improve pronunciation with audio voiceovers and master new languages through immersive bilingual reading.

Highlights
  • Instant translation of any book
  • Personalized vocabulary dictionary
  • Spaced repetition for memorization
  • Audio voiceovers for pronunciation
  • Bilingual parallel text reading
  • EPUB reader for custom files
Features
Read full description

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!

About

Learn Languages

Read full description

Speak 5 phrases before you scroll. Phrase5 is a calm AI language coach that turns screen time into daily speaking practice. Learn 5 useful phrases, say each one out loud, get feedback after each round, and use PhraseLock to unlock selected social apps after you practice. Most language apps make you tap through lessons. Phrase5 helps you speak. Your daily goal is simple: 5 useful phrases, 5 reps each, short guided conversations, and a streak you can actually keep. HOW PHRASE5 WORKS • Speak before you scroll Choose the social apps that distract you. Complete your daily speaking round, then get back to your apps. • Learn 5 useful phrases a day Start with a small set of phrases you can actually use in real life. • Say each phrase out loud Repeat every phrase 5 times so it starts to feel natural. • Practice in guided conversation Your AI coach introduces phrases naturally, responds to your attempts, and helps you keep speaking. • Get feedback after each round See what sounded clear, check pronunciation, and know what to repeat next. • Choose real-life topics Generate phrases for travel, work, restaurants, small talk, presentations, dating, customer support, and more. • Build your streak and track progress Watch your phrases, reps, practice minutes, and speaking momentum grow over time. WHY PHRASES? Language is not only vocabulary. Real conversations are built from phrases like: “How are you?” “Can you repeat that?” “I don’t understand.” “How much does it cost?” Phrase5 helps you practice the kind of language you can use immediately instead of memorizing random word lists. BUILT FOR REAL SPEAKING Phrase5 is designed for learners who want to speak, not just study silently. Use it to: • Practice speaking every day • Learn useful everyday phrases • Improve pronunciation and confidence • Prepare for travel and real conversations • Build a small habit you can actually keep • Practice Swedish, Spanish, French, German, Korean, Italian and more A CALMER WAY TO LEARN No overwhelming lesson trees. No endless vocabulary lists. No pressure to study for hours. Just 5 phrases, 25 spoken reps, and a simple reason to practice before you scroll. Start today with 5 phrases. Say them out loud. Earn your scroll. SUBSCRIPTION OPTIONS Phrase5 offers auto-renewable subscriptions to unlock full access. - Monthly Plan - Annual Plan – includes a 3-day free trial Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID account settings. Privacy Policy: https://www.privacypolicies.com/live/23c96f06-35ce-47fb-83e8-6e3d3e74726f Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

duoBooks4 screens
Learn Languages4 screens

Verdict

The call

The clearest difference is iOS requirement: duoBooks at 15.0 against Learn Languages's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. duoBooks sells 11 in-app purchases, starting at $2.99 per month and Learn Languages sells 4 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

duoBooks ships an update every 2 weeks, Learn Languages every 3 weeks. The most recent releases landed on September 21, 2026 and September 12, 2026 respectively.

Scorecard1 real difference · 9 level
duoBooks versus Learn Languages: the parameters behind the verdict, then further details
ParameterduoBooksLearn Languages
PriceFreeFree
Rating4.7 (48 ratings) — better—
Positive reviews68.6% of reviews—
Number of ratings48 — better—
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size54 MB81 MB
Age rating12+4+
DeveloperPlainProg LLCMiracle Ayodele

In-app purchases

11 purchases

duoBooks

Subscriptions5
  • Full Plan7 Days trial$2.991 Month
  • Full Plan3 Days trial$6.991 Month
  • Full Plan7 Days trial$17.991 Year
Show 2 more
  • 6 Month Full Plan3 Days trial$19.996 Months
  • Full Yearly Plan3 Days trial$29.991 Year
One-time6
  • War and Peace$0.99
  • Silver Blaze$0.99
  • On The River$0.99
Show 3 more
  • Clochette$0.99
  • The Fishing Hole$0.99
  • Alice in Wonderland$0.99
4 purchases

Learn Languages

Subscriptions4
  • Phrase5 Pro - Monthly$14.991 Month
  • Phrase5 Pro - Monthly$19.991 Month
  • Phrase5 Pro - Yearly3 Days trial$99.991 Year
Show 1 more
  • Phrase5 Pro - Yearly3 Days trial$119.991 Year

Questions

Is duoBooks free?
duoBooks is free to download, with in-app purchases available.
Is Learn Languages free?
Learn Languages is free to download, with in-app purchases available.
Do duoBooks or Learn Languages have ads?
Neither duoBooks nor Learn Languages shows ads.
Which is updated more often, duoBooks or Learn Languages?
duoBooks ships an update every 2 weeks, and Learn Languages every 3 weeks. Most recently, duoBooks was updated on September 21, 2026 and Learn Languages on September 12, 2026.

Other comparisons