Comparison

Parallel Books vs ForeignReader

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

Head to head
About

Parallel Books

Learn a new language by reading books with side-by-side translations. This app keeps translations synchronized as you read, allowing for full immersion. Easily switch between display modes and add notes for a personalized learning experience.

Highlights
  • Dual language display
  • Synchronized translations
  • Adjustable display modes
  • Searchable notes
  • Day/night themes
  • Highlighting
Features
Read full description

Become fluent in a new language. Read a book in your new tongue while having a parallel copy in your native language handy for reference. Now thanks to Parallel Books, this technique is available on iPad, iPhone and iPod touch. Translations will automatically stay in sync, leaving you free to be immersed in the words on the page. Reading a book in two different languages at the same time has never been easier! - Designed for people learning a new language. - Displays a book simultaneously in two different languages. - Translations stay in sync as you read. - Stretchy, β€œchewing gum" overlay visually connects parallel content. - Chewing gum overlay can be hidden. - Translations can be displayed in two columns on the screen, or each translation can fill an entire screen. - Continuously scrolls or pages through content without needing to change mode. - Tapping on a paragraph shows the translation of that paragraph. - Double tapping hides tool bars, giving more space. - Multicolored highlights and searchable notes can be added. - Includes day and night themes. - Currently books are available in English, German, French, Spanish, Portuguese, Russian, Italian, Dutch, Swedish, Esperanto, Korean, Chinese, Arabic plus more. - Some books include multiple translations in the same language; ideal for literature and translation students. - Parallel Books is in development for other platforms. - New books are being added all the time. - All books are currently FREE.

About

ForeignReader

Features
Read full description

Foreignreader Read books in a foreign language without breaking your flow. Foreignreader is built for one thing: uninterrupted reading with instant understanding. Tap any word to get a translation immediately. Need more context? Tap again to see how the word works in the sentence. No exercises. No distractions. Just reading. Read physical books too. Point your camera at any page, ForeignReader scans it instantly and lets you read it with the same word-by-word translations. How it works: β€’ Tap a word β†’ instant translation β€’ Tap again β†’ context-aware meaning β€’ Expand β†’ full sentence translation β€’ Scan a page β†’ read any physical book with translations Free: β€’ Unlimited word translations β€’ 5 context translations per month β€’ 5 sentence translations per month β€’ Scan physical book pages Pro: β€’ Unlimited context-aware translations β€’ Unlimited sentence translations β€’ Scan physical book pages β€’ Sync across devices Learn through reading, not exercises. Terms of Use: https://foreignreader.io/terms Privacy Policy: https://foreignreader.io/privacy

Screenshots

Parallel Books4 screens
ForeignReader4 screens

Verdict

The call

The clearest difference is in-app purchases: Parallel Books at none against ForeignReader's 1. Parallel Books also leads on iOS requirement (15.6 vs 26.2). ForeignReader's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. ForeignReader sells 1 in-app purchase, starting at $2.99 per month. Parallel Books asks for nothing beyond the download.

UpkeepUpdate frequency

Parallel Books ships an update every 3 months, ForeignReader every 2 weeks. The most recent releases landed on October 9, 2026 and September 23, 2026 respectively.

Scorecard3 real differences Β· 5 level
Parallel Books versus ForeignReader: the parameters behind the verdict, then further details
ParameterParallel BooksForeignReader
PriceFreeFree
Positive reviews40.0% of reviewsβ€”
Update frequencyEvery 3 monthsEvery 2 weeks β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
MonetizationFreeβ€”
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.6 β€” better26.2
Further details β€” not scored
Size2 MB45 MB
Age rating12+4+
DeveloperHigh Tea IT LimitedNikolai Pronichev

In-app purchases

None

Parallel Books

No in-app purchases

1 purchases

ForeignReader

Subscriptions1
  • ForeignReader PRO$2.991 Month

Questions

Is Parallel Books free?
Parallel Books is free to download, with no in-app purchases.
Is ForeignReader free?
ForeignReader is free to download, with in-app purchases available.
Do Parallel Books or ForeignReader have ads?
Neither Parallel Books nor ForeignReader shows ads.
Which is updated more often, Parallel Books or ForeignReader?
Parallel Books ships an update every 3 months, and ForeignReader every 2 weeks. Most recently, Parallel Books was updated on October 9, 2026 and ForeignReader on September 23, 2026.

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