Parallel Books vs Lantern
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Dual language display
- Synchronized translations
- Adjustable display modes
- Searchable notes
- Day/night themes
- Highlighting
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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, “chewing 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.
Lantern
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A small light for reading in another tongue. Lantern is a quiet iPhone app for learning languages by reading the books you actually want to read. Tap any word for a translation. Double-tap a sentence to translate it in context. No streaks. No quizzes. No notifications begging for your attention. Just you, a book, and a small light to read by. WHY READING WORKS Reading is how a language settles into a person. You meet a word in context, then again, then again — and one day, you simply know it. Lantern keeps you in that loop and gets out of the way. Every page exposes you to natural sentence structure, idioms, and the words native speakers actually use, far beyond what any flashcard deck can teach. HOW IT WORKS • Browse Project Gutenberg right inside the app, or import your own EPUB • Read at your pace — no streaks, no leaderboards, no nagging • Tap a word for a definition • Double-tap a sentence for a translation rendered just below the line • The more you read, the less you look up NINETEEN LANGUAGES Read and learn in Arabic, Chinese, Dutch, English, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Thai, Turkish, Ukrainian, or Vietnamese. The Lantern interface itself is localized in every supported language — reading German in German feels right from the first tap. ON-DEVICE, ALWAYS Translation runs entirely on your iPhone using Apple's built-in framework. Audio pronunciation uses Apple's system voices on-device. The text of your book never leaves your phone. No accounts. No analytics. No tracking. No ads. Your library, progress, and lookups stay on your device. FREE, FOREVER No subscriptions. No in-app purchases. No fees of any kind. Just an app, made well. Lantern. A small light in the dark.
Screenshots
Verdict
The clearest difference is device support: Parallel Books at 3 against Lantern's 1. Parallel Books also leads on iOS requirement (15.6 vs 26.2). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Parallel Books | Lantern |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 12+ | 12+ |
| Developer | High Tea IT Limited | Daniel Waldie |
In-app purchases
Parallel Books
No in-app purchases
Lantern
No in-app purchases







