Comparison

Okuzeka vs ClickBook

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

Head to head
About

Okuzeka

Features
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Read what interests you, with word and sentence translation in 180+ languages. Bring your own PDF, EPUB or TXT books to Okuzeka. Tap an unfamiliar word for an AI-powered explanation in context, translate a sentence, and keep reading without switching apps. โ€ข Save words as flashcards, together with the sentence where you found them. โ€ข Search inside books and revisit words you looked up. โ€ข Adjust fonts, spacing and reading themes. โ€ข Try the sample story before creating an account. Learn English, Spanish, French or another language through the books you want to read. Choose from 30 interface language options in Settings; translation languages are selected separately. Some features and usage limits depend on your subscription plan. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ https://okuzeka.com/privacy

About

ClickBook

Features
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Tap a word. Understand it. Keep reading. ClickBook is an ebook reader with an AI that lives inside the app. Tap any word you do not know and it explains it right there on the page, without leaving your book and without looking anything up. Because the AI runs on your phone, it works anywhere โ€” on a plane, on the underground, in a country where your data plan does not. There is no account to create, no email to hand over, and no subscription. WHAT HAPPENS WHEN YOU TAP A WORD โ€ข Meaning โ€” a short, plain definition in the language of the book โ€ข Example โ€” the word used in fresh sentences, so it actually sticks โ€ข Translation โ€” the word explained in your own language (Pro) โ€ข Context โ€” the sentence around it explained in your own language (Pro) โ€ข Ask ChatGPT โ€” open the word and its passage in ChatGPT when you want to go further (Pro) FOR READING IN A LANGUAGE YOU ARE STILL LEARNING Choose your mother tongue when you set the app up, and explanations come back in it. You can read a novel slightly above your level without a dictionary in your other hand, and without breaking the thread of the story every few minutes. Every word you look up is saved to your vocabulary list, with the sentence you found it in. PRIVACY, THE REAL KIND The AI model ships inside the app. It is not a wrapper around a chatbot in a data centre, so your books and the words you look up stay on your device. Turn on airplane mode and the reader and every explanation still work โ€” that is the test, and it passes. The one exception is Ask ChatGPT (Pro), which sends a word and its passage to ChatGPT only when you tap it, and asks you first. No account. No sign-up. No tracking. No ads. FREE, AND WHAT PRO ADDS Free gives you the whole reader, your library, offline AI explanations of what a word means, examples that use it, and your vocabulary list. ClickBook Pro is a single one-time purchase โ€” not a subscription โ€” and adds translation into your own language, context translation of the whole sentence, the Ask ChatGPT button, changing your mother tongue whenever you like, and control over the order the answers appear in. YOUR BOOKS Open EPUB files from anywhere on your device or from iCloud Drive. PDFs are converted when you import them. Three classics are included so you have something to read the moment you open the app. Four fonts, adjustable text size and line spacing, white, sepia, mint and dark pages, and page-by-page or continuous scrolling, because a reader you cannot read comfortably is not much of a reader.

Screenshots

Okuzeka4 screens
ClickBook4 screens

Verdict

The call

Okuzeka and ClickBook are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Okuzeka sells 3 in-app purchases, starting at $0.99 per month and ClickBook sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Okuzeka ships an update weekly, ClickBook every 4 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

ScorecardNo meaningful differences
Okuzeka versus ClickBook: the parameters behind the verdict, then further details
ParameterOkuzekaClickBook
PriceFreeFree
Update frequencyWeeklyEvery 4 days โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 โ€” better15.1
Further details โ€” not scored
Size23 MB1.8 GB
Age rating4+4+
DeveloperAli CetinkayaMohamad Mohamad

In-app purchases

3 purchases

Okuzeka

Subscriptions3
  • Okuzeka Reader$0.991 Month
  • Okuzeka Plus$1.991 Month
  • Okuzeka Pro$2.991 Month
1 purchases

ClickBook

One-time1
  • ClickBook Pro$12.99

Questions

Is Okuzeka free?
Okuzeka is free to download, with in-app purchases available.
Is ClickBook free?
ClickBook is free to download, with in-app purchases available.
Do Okuzeka or ClickBook have ads?
Neither Okuzeka nor ClickBook shows ads.
Which is updated more often, Okuzeka or ClickBook?
Okuzeka ships an update weekly, and ClickBook every 4 days. Most recently, Okuzeka was updated on October 28, 2026 and ClickBook on October 29, 2026.

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