Comparison

KeepReading vs PolyLingual

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

Head to head
About

KeepReading

Effortlessly read foreign language texts with instant translations. This app helps you build vocabulary and comprehension by providing seamless translation options for various content types, making language learning enjoyable and interruption-free.

Highlights
  • Tap-to-show word translation
  • Swipe-to-show phrase/sentence translation
  • Auto-scan translation while reading
  • Supports web pages, ePubs, PDFs, and notes
  • Over 20 languages supported
  • Vocabulary and comprehension building
Read full description

Dive into the world of foreign language reading with KeepReading—your ultimate companion for learning without interruptions. Forget the hassle of stopping to check a dictionary. With KeepReading, translations appear right when you need them, so you can focus on what really matters: enjoying your reading. It’s designed to help you breeze through tricky texts, effortlessly building your vocabulary and comprehension as you go. Here’s how KeepReading keeps things simple: 1. Tap-To-Show: Need a quick word translation? Just tap and keep going. 2. Swipe-To-Show: Want to see a full phrase or sentence translated? Swipe and it’s done. 3. Auto-Scan-To-Show: Let the app scan and translate while you keep reading—no interruptions, no effort. Whether it’s web pages, ePubs, PDFs, or your personal notes, KeepReading makes sure translations are smooth and seamless. With support for over 20 languages—including Chinese, English, French, German, Italian, Japanese, Korean, Portuguese, Spanish, Ukrainian, Vietnamese, and more—KeepReading has you covered, no matter what you’re reading. Reading is one of the best ways to learn a new language, but tackling texts that feel too advanced can be frustrating. KeepReading turns frustration into flow, helping you confidently take on challenging content while growing your skills. Start reading your way to fluency with KeepReading today.

About

PolyLingual

Learn vocabulary in numerous languages at your own pace. Customize your learning by adding your own words and phrases, which are automatically translated. Explore flashcards and side-by-side word grids for effective memorization.

Highlights
  • Learn vocabulary in multiple languages simultaneously
  • Add and customize your own words and phrases
  • Automatic translation of custom words
  • Flashcard learning mode
  • Side-by-side word grid comparison
  • Listen to words in their native language
Features
Read full description

Learn multiple languages together—not one at a time. PolyLingual is built for language learners who want to develop vocabulary across several languages in parallel. Choose the languages you’re learning, then compare, hear, and study the same word across all of them at once. Instead of repeating separate courses, PolyLingual helps you recognize connections between languages and build a broader multilingual vocabulary. MAKE POLYLINGUAL YOUR OWN Add your own words and phrases, and Apple Translate automatically creates translations for your selected languages. Organize your material into custom sections, then use it alongside the included vocabulary throughout the app. STUDY ACROSS MULTIPLE LANGUAGES • Compare translations side by side in the multilingual word grid • Study several languages together with interactive flashcards • Choose any supported language as the front of your cards • Tap words to hear their pronunciation • Focus on a specific category or shuffle your study material • Save important words for additional review BUILD A PERSONAL VOCABULARY LIBRARY Create custom sections for anything you want to learn—from travel and business to school, hobbies, or an upcoming trip. Add as many personal words and phrases as you need and return to them whenever you’re ready to practice. EXTENSIVE READY-TO-STUDY CONTENT Premium provides access to nearly 8,000 words and phrases across 28 languages. Included material covers: • Thousands of common English words • Useful everyday phrases • Common nouns, verbs, adjectives, and adverbs • Verb conjugation examples • Numbers, prepositions, and more LEARN AT YOUR OWN PACE PolyLingual gives you the flexibility to browse, compare, listen, and practice without forcing you through a fixed course. Whether you’re concentrating on one language or building skills across several, your study experience remains entirely under your control. Download PolyLingual and discover a more connected way to learn languages. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

KeepReading4 screens
PolyLingual4 screens

Verdict

The call

The clearest difference is in-app purchases: KeepReading at none against PolyLingual's 1. KeepReading also leads on update cadence (every 5 days vs monthly) and iOS requirement (16.0 vs 18.6). PolyLingual's advantage is ratings volume (3 vs 1). On price, rating, ads and device support 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. PolyLingual sells 1 in-app purchase, starting at $2.99 per month. KeepReading asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for KeepReading against 5.0 for PolyLingual. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

KeepReading ships an update every 5 days, PolyLingual monthly. The most recent releases landed on September 21, 2026 and October 1, 2026 respectively.

Scorecard5 real differences · 5 level
KeepReading versus PolyLingual: the parameters behind the verdict, then further details
ParameterKeepReadingPolyLingual
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews50.0% of reviews—
Number of ratings13 — better
Update frequencyEvery 5 days — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.0 — better18.6
Further details — not scored
Size19 MB61 MB
Age rating17+4+
DeveloperCambridge Technology Innovation Centre LtdBrennan Dumm

Customer experience

KeepReading

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

PolyLingual

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

KeepReading

No in-app purchases

1 purchases

PolyLingual

Subscriptions1
  • Full Access$2.991 Month

Questions

Is KeepReading free?
KeepReading is free to download, with no in-app purchases.
Is PolyLingual free?
PolyLingual is free to download, with in-app purchases available.
Which has better reviews, KeepReading or PolyLingual?
KeepReading and PolyLingual are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do KeepReading or PolyLingual have ads?
Neither KeepReading nor PolyLingual shows ads.
Which is updated more often, KeepReading or PolyLingual?
KeepReading ships an update every 5 days, and PolyLingual monthly. Most recently, KeepReading was updated on September 21, 2026 and PolyLingual on October 1, 2026.

Other comparisons