Comparison

Libera vs Polyglot Reader

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

Head to head
About

Libera

This app helps you learn foreign languages by reading texts side-by-side in your native language and the language you're learning. It offers a customized dictionary, native audio, and grammar notes for a comprehensive learning experience.

Highlights
  • Parallel text display
  • Tap to highlight corresponding text
  • Customized in-context dictionary
  • Native audio recordings with adjustable speed
  • Multi-panel interface
  • Favorite word list for vocabulary review
Features
Read full description

Libera is a revolutionary language learning tool that enables users to easily read foreign language texts alongside the same texts in their own native language. Praised by users as "perfect" and "marvelous", this cutting-edge platform provides learners with a new way of accessing foreign language texts, making foreign language reading easier and more enjoyable than ever before. Foreign language reading is a proven and effective way of quickly improving your language skills, and Libera allows you to read a new language without constant, bothersome dictionary lookups. Libera presents the text of the language you're learning side by side with your own native language, giving you a ready reference for any unknown vocabulary or grammar. What's more, whenever a segment (word or phrase) is tapped in one of the texts, the corresponding segment in the parallel text is highlighted simultaneously, showing the link – for instance, a Spanish learner can tap the word “sombrero” to see that it is linked to the word “hat” in the English text. Each story available in Libera also features a customized dictionary, a full native audio recording in the language you're learning, and notes on key grammar forms, creating a fully-contained learning environment without the need for outside resources. KEY FEATURES * Tapping a word in one language immediately highlights corresponding word in second language * Customized dictionary shows language-to-language correspondences in context * Full native audio recordings – with adjustable speed – aid in improving pronunciation and listening skills * Multi-panel interface displays up to four different versions of a text side by side * Segment bar at the bottom of the screen provides a quick reference for translations and pronunciation * Word Info screen enables in-depth word study with examples * Favorite word list allows users to save and review new vocabulary * Full-form search lets users search through the text quickly and easily * Grammar Notes highlight important points in grammar and usage

About

Polyglot Reader

Read books in foreign languages and learn new vocabulary. Tap on unknown words for instant translations and save them to flashcards for later study. Supports various document formats and offers pronunciation practice and knowledge tests.

Highlights
  • Read books in multiple formats (PDF, EPUB, TXT)
  • Translate unknown words and phrases instantly
  • Create flashcards for vocabulary learning
  • Pronunciation support for words and phrases
  • Knowledge tests for vocabulary sets
  • Scan and recognize text from documents
Features
Read full description

Read books in any foreign language and turn every unknown word into a flashcard you'll actually remember. Version 5.0 brings a complete redesign — a calmer reader, a smarter library and a new way to study. Polyglot Reader is your pocket library, dictionary and flashcard trainer in one app. Tap any word or phrase in a book, get an instant translation with transcription, hear the pronunciation, and save it to a deck to review later. Built for iPhone, iPad and Mac, with a refined dark theme. — READ — • Completely redesigned reader, bookmarks, translation popup and settings • New System theme that follows iOS automatically, plus refined Light and Dark • Open books in PDF, EPUB, FB2, RTF and TXT • Import from Dropbox, Google Drive, OneDrive or any file app • Scan a paper page — the app recognizes the text and saves it as a book • Highlights words you don't know yet, right inside the page • Vertical scrolling, comfortable type settings, picture zoom — LIBRARY — • Thousands of free classic books in 38+ languages, sorted into sections like Classics, Sherlock Holmes, Shakespeare, Horror & Mystery, Children's Books, Philosophy, Adventure • Adapted A2–B1 readers for German learners, plus original literature in English, French, Spanish, Italian, Russian, Japanese, Chinese, Latin, Greek and many more • New sorting, new sections and search inside every shelf • Filter to show only recent books • Difficulty level and tags shown right on each cover • Drag and drop to reorganize your shelves • New "Added manually" section for everything you imported yourself • Smoother search, scroll and sharing on iPad — LEARN — • Redesigned cards and study screens • Ready-made flashcard sets for English, Spanish, Portuguese, Russian, Chinese and Japanese — verbs, nouns and themed categories • Smart virtual decks: All cards, Recent, Unknown — see progress at a glance • Quick preview and actions inside every deck • Pick a default deck for new words you save while reading • Per-card knowledge level with a colored progress bar (red → green as you master each word) • Three study modes: foreign only, foreign + native, native only • Hands-free mode — keep learning without touching the screen • Long-press context menu: mark as known or unknown in one tap • Optional shuffled order during study • Filter to show only words you haven't learned yet • Pronunciation for both the word and its translation • Knowledge tests for every deck • Export and import cards in CSV — TRANSLATE — • 111 offline dictionaries — no internet, no quota • On-the-fly transcription for all popular languages • Speech-to-text: just say the word, get the translation • Translate your own phrases and add them to any deck • Edit translations when you want a better wording • 90+ languages supported, including Arabic, Chinese, Dutch, English, French, German, Greek, Hebrew, Hindi, Italian, Japanese, Korean, Latin, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Ukrainian, Vietnamese and many more — AND ALSO — • System, Light and Dark themes • Choose Google or Yandex as default online translator • Compact mode on iPhone, expanded card view on iPad • Notifications to bring you back to recent cards Whether you're reading Sherlock Holmes in English, Kafka in German, Don Quijote in Spanish or Dostoevsky in Russian — Polyglot Reader turns reading into vocabulary, one tap at a time. Questions or feedback: support@readandlearnapp.com

Screenshots

Libera4 screens
Polyglot Reader4 screens

Verdict

The call

The clearest difference is ads: Libera at none against Polyglot Reader's shown. Libera also leads on iOS requirement (12.0 vs 16.0). Polyglot Reader's advantage is rating (4.4 vs 4.0) and ratings volume (74 vs 4). On price, review sentiment, in-app purchases and monetization model 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. Libera sells 5 one-off in-app purchases and Polyglot Reader sells 11 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Polyglot Reader holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Polyglot Reader has 74 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 67% and 66% positive.

UpkeepUpdate frequency

Libera ships an update every 4 months, Polyglot Reader every 2 months. The most recent releases landed on September 10, 2026 and September 23, 2026 respectively.

Scorecard5 real differences · 5 level
Libera versus Polyglot Reader: the parameters behind the verdict, then further details
ParameterLiberaPolyglot Reader
PriceFreeFree
Rating4.0 (4 ratings)4.4 (74 ratings) — better
Positive reviews66.7% of reviews — better65.7% of reviews
Number of ratings474 — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size119 MB120 MB
Age rating4+4+
DeveloperCJKIAnton Ivanov

Customer experience

Libera

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews15 reviews
Positive66.7%
Neutral6.7%
Negative26.7%

Polyglot Reader

All ratings74 ratings
Positive82.4%
Neutral6.8%
Negative10.8%
Written reviews70 reviews
Positive65.7%
Neutral14.3%
Negative20.0%

In-app purchases

5 purchases

Libera

One-time5
  • Ali Baba and the Forty ThievesFree
  • Japapedia 1$0.99
  • Japapedia 2$0.99
Show 2 more
  • Roman Holiday$3.99
  • Ali Baba and the Forty Thieves$5.99
11 purchases

Polyglot Reader

Subscriptions8
  • Monthly subscription$3.991 Month
  • Monthly subscription3 Days trial$7.991 Month
  • Monthly subscription$7.991 Month
Show 5 more
  • Monthly subscription$9.991 Month
  • Annual subscription$22.991 Year
  • Annual subscription$34.991 Year
  • Annual subscription7 Days trial$39.991 Year
  • Annual subscription$59.991 Year
One-time3
  • Upgrade from advanced to professional version$3.99
  • Upgrade from Starter to Advanced version$15.99
  • Full version$99.99

Questions

Is Libera free?
Libera is free to download, with in-app purchases available.
Is Polyglot Reader free?
Polyglot Reader is free to download, with in-app purchases available.
Which has better reviews, Libera or Polyglot Reader?
Polyglot Reader is rated higher. Libera averages 4.0 out of 5 from 4 ratings, while Polyglot Reader averages 4.4 from 74 ratings.
Do Libera or Polyglot Reader have ads?
Polyglot Reader shows ads; Libera does not.
Which is updated more often, Libera or Polyglot Reader?
Libera ships an update every 4 months, and Polyglot Reader every 2 months. Most recently, Libera was updated on September 10, 2026 and Polyglot Reader on September 23, 2026.

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