Comparison

Throughline Speed Reader vs EonBook

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

Head to head
About

Throughline Speed Reader

Enhance your reading speed and comprehension with intelligent pacing that adapts to natural language rhythms. This app presents text one word at a time, optimizing focus and reducing eye movement for a more efficient reading experience. It also offers AI-powered summaries and seamless integration across Apple devices.

Highlights
  • Adaptive word-by-word pacing
  • Optimal Recognition Point (ORP) alignment
  • AI-generated summaries with key takeaways
  • Safari extension for saving articles
  • Apple Watch app for reading on the go
  • Detailed reading analytics dashboard
  • Customizable fonts and interface
Features
Read full description

Read articles and short documents on your iPhone or iPad. Throughline displays text one word at a time at a fixed focus point. Choose your speed, pause to browse nearby paragraphs, and resume where you stopped. Share web articles from Safari, paste copied text, or import TXT, PDF and DOCX files. Save reading items to your library and read saved text offline. The free reader includes a library of up to 10 items. Throughline Pro adds an unlimited library, advanced pacing controls, the Safari extension, reading analytics and Apple Watch reading. Pro also offers on-device summaries when Apple Intelligence is available for your device and language. The app interface is currently in English. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

EonBook

Features
Read full description

EonBook is a minimalist ebook reader built for focused, comfortable, and distraction-free reading. Designed for readers who prefer a clean interface and complete control over their reading experience, EonBook keeps the focus on your books—not on ads, feeds, or unnecessary features. Key features: • Support for EPUB, MOBI, AZW3, and PDF • Smooth page turning and scrolling modes • Two-page layout for landscape reading on iPad • Customizable fonts, text size, line spacing, paragraph spacing, margins, and alignment • Adjustable reading themes and backgrounds • Highlight, bookmark, search, and manage important passages • Organize your library with folders, tags, and custom metadata • Reading progress and detailed reading statistics • Bilingual reading support for multilingual ebooks • Local file management for a private, independent library • Optimized reading experience for both iPhone and iPad EonBook Pro unlocks additional customization, organization, and reading statistics features with a one-time purchase. Whether you read literature, history, essays, or personal documents, EonBook is designed to help you slow down, stay focused, and enjoy every page.

Screenshots

Throughline Speed Reader4 screens
EonBook4 screens

Verdict

The call

The clearest difference is update cadence: EonBook at every 2 days against Throughline Speed Reader's every 6 weeks. EonBook also leads on iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases 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. Throughline Speed Reader sells 3 in-app purchases, starting at $1.99 per month and EonBook sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Throughline Speed Reader ships an update every 6 weeks, EonBook every 2 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
Throughline Speed Reader versus EonBook: the parameters behind the verdict, then further details
ParameterThroughline Speed ReaderEonBook
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 6 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS26.015.1 — better
Further details — not scored
Size18 MB60 MB
Age rating4+4+
DeveloperSteven Townsend海声 池

In-app purchases

3 purchases

Throughline Speed Reader

Subscriptions2
  • Throughline Pro - Monthly$1.991 Month
  • Throughline Pro - Annual$12.991 Year
One-time1
  • Throughline Pro - Lifetime$29.99
1 purchases

EonBook

One-time1
  • Unlock Pro$5.99

Questions

Is Throughline Speed Reader free?
Throughline Speed Reader is free to download, with in-app purchases available.
Is EonBook free?
EonBook is free to download, with in-app purchases available.
Do Throughline Speed Reader or EonBook have ads?
Neither Throughline Speed Reader nor EonBook shows ads.
Which is updated more often, Throughline Speed Reader or EonBook?
Throughline Speed Reader ships an update every 6 weeks, and EonBook every 2 days. Most recently, Throughline Speed Reader was updated on October 31, 2026 and EonBook on November 5, 2026.

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