Comparison

BookThoughts vs Clarify

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

Head to head
About

BookThoughts

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An easy-to-use ebook reader that supports popular file formats such as "epub," "mobi," "azw3," and "txt." Enjoy features like marking specific text portions and adding notes. Customize the font size of your books , translate text using openAI . Best of all, all these features are completely free.

About

Clarify

Features
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Difficult books are worth reading. Dense prose, unfamiliar ideas, and older language should not keep great books out of reach. Clarify is an AI ebook reader for iPhone and iPad that helps you understand challenging books without leaving the page. Browse 100+ included classics, follow a guided philosophy path, or import your own EPUB. Read the original—not a summary. Ask for help only when you need it, compare clearer wording with the original, and keep reading. AUTO SIMPLIFY AS YOU READ Turn on Simplify and clearer wording appears directly in the reader as you move through the book. Clarify works progressively, paragraph by paragraph, and is designed to preserve the book’s structure and formatting. The original text is always one tap away. SIMPLIFY A PASSAGE Select a difficult sentence or part of a paragraph to see the same idea in clearer language. Switch between the simplified version and the original whenever you want. EXPLAIN THE IDEA Need more than a rewrite? Select a passage for a short answer followed by a fuller explanation informed by nearby text and book context. Understand the idea—not just the words. 100+ CLASSICS—OR YOUR OWN BOOKS Browse and download more than 100 classics across fiction, science, philosophy, history, poetry, adventure, and drama. Already have something you want to understand? Import your own EPUB files and use the same Simplify and Explain tools. GUIDED PHILOSOPHY PATHS Not sure where to begin? Clarify recommends a starting book and related works to explore next: • Understand Stoicism—six essential works featuring Marcus Aurelius, Epictetus, and Seneca • Ethics & the Good Life • Power & Government MADE FOR FOCUSED READING • Reading progress saved automatically • Table of contents and chapter navigation • Adjustable text size • Light, dark, and system themes • Downloaded and imported books stored on your device • Core reading works offline • No account required Stay with the original. Get help when you need it. Keep reading.

Screenshots

BookThoughts4 screens
Clarify4 screens

Verdict

The call

The clearest difference is iOS requirement: BookThoughts at 13.4 against Clarify's 15.0. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BookThoughts ships an update every 6 weeks, Clarify monthly. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

Scorecard1 real difference · 5 level
BookThoughts versus Clarify: the parameters behind the verdict, then further details
ParameterBookThoughtsClarify
PriceFreeFree
Update frequencyEvery 6 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.4 — better15.0
Further details — not scored
Size46 MB37 MB
Age rating4+4+
Developer婷雅 李Davinder Pal Singh

In-app purchases

None

BookThoughts

No in-app purchases

None

Clarify

No in-app purchases

Questions

Is BookThoughts free?
BookThoughts is free to download, with no in-app purchases.
Is Clarify free?
Clarify is free to download, with no in-app purchases.
Do BookThoughts or Clarify have ads?
Neither BookThoughts nor Clarify shows ads.
Which is updated more often, BookThoughts or Clarify?
BookThoughts ships an update every 6 weeks, and Clarify monthly. Most recently, BookThoughts was updated on October 3, 2026 and Clarify on October 12, 2026.

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