Comparison

FreeIReader vs CustomBooks

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

Head to head
About

FreeIReader

Features
Read full description

FreelReader: Built for Ultimate Reading and a Fluid Experience Are you looking for a reading tool that is truly responsive, smooth, and versatile? FreelReader gives you a brand-new choice: a clean reader that perfectly combines high performance, high-refresh-rate smoothness, and freedom—built purely for the ultimate experience. 【Silky High Refresh Rate · Ultimate Performance】 Fluid animations in every scenario: Deeply optimized for high-refresh-rate screens. Whether it’s the delicate animation of realistic page turning or buttery-smooth vertical scrolling in waterfall mode, you get high-refresh-rate responsiveness that stays right under your finger. Millisecond-level instant response: Built on a high-performance rendering engine, even extremely large texts load without lag, letting you enter immersive reading in an instant. 【All Formats Supported · Native EPUB Refined Typesetting】 Full support for TXT and EPUB: Seamlessly import local TXT files and standard EPUB e-books. Native EPUB refined typesetting engine: Faithfully restores the book’s original chapter structure, mixed text-and-image layouts, and beautiful typographic design, giving you authentic layouts comparable to physical books. Layout your way: Includes the warm, elegant XiaLu WenKai font. Freely adjust font size and fine-tune line spacing, paragraph spacing, and margins with one tap to create your own comfortable reading view. 【Immersive Translation · Cross-Language Without Barriers】 Bilingual immersive comparison: When reading foreign-language originals, simply select text to invoke the system’s high-fidelity translation with one tap. Original and translated text are interwoven for a seamless, immersive cross-language reading experience. 【Web Source Extension · Aggregate Online Novels】 Built-in browser extension: Add any literature, news, or novel website you often read directly to your bookshelf. Smart progress tracking: Automatically records your reading position while browsing the web; next time, resume with one tap. Combined with the reader’s built-in font-size and font optimization, web content is turned into a comfortable, refined layout. 【Privacy and Security · Absolutely Clean】 Tool as a service: No ad pop-ups, no background online data collection. All local books and reading data are stored securely only on your local device. No interruptions—just an absolutely quiet corner for reading. Download FreelReader now and start your journey of free, high-refresh-rate reading. Feedback QQ group: 614504562. Email: wrxdz01@outlook.com By using this app, you agree to Apple’s Standard License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CustomBooks

Features
Read full description

CustomBookS Take control of your ebook library. A beautiful library shouldn't be ruined by inconsistent covers, incorrect titles, or messy metadata. CustomBookS is designed to help you organize and personalize your EPUB collection with a simple, privacy-focused editing experience. Features Edit EPUB Metadata Change book titles Edit author names Update descriptions Replace book covers Wireless Local Transfer No cables required No cloud uploads Import and export ebooks directly over your local network Build a Cleaner Library Fix incorrect metadata Replace low-quality or inconsistent covers Create a more organized library in Kindle, Apple Books, and other reading apps Simple, Fast, and Private No ads All processing happens locally Designed for ebook lovers and collectors Whether you're a Kindle user, an avid reader, or someone who wants a cleaner and more beautiful ebook collection, CustomBookS gives you full control over your library.

Screenshots

FreeIReader4 screens
CustomBooks3 screens

Verdict

The call

The clearest difference is in-app purchases: CustomBooks at none against FreeIReader's 1. FreeIReader's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, ads 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. FreeIReader sells 1 in-app purchase, starting at $0.99 per month. CustomBooks asks for nothing beyond the download.

UpkeepUpdate frequency

FreeIReader ships an update every 3 weeks, CustomBooks every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
FreeIReader versus CustomBooks: the parameters behind the verdict, then further details
ParameterFreeIReaderCustomBooks
PriceFreeFree
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size42 MB3 MB
Age rating17+4+
Developer正 董永隆 郝

In-app purchases

1 purchases

FreeIReader

Subscriptions1
  • Membership service (one month)$0.991 Month
None

CustomBooks

No in-app purchases

Questions

Is FreeIReader free?
FreeIReader is free to download, with in-app purchases available.
Is CustomBooks free?
CustomBooks is free to download, with no in-app purchases.
Do FreeIReader or CustomBooks have ads?
Neither FreeIReader nor CustomBooks shows ads.
Which is updated more often, FreeIReader or CustomBooks?
FreeIReader ships an update every 3 weeks, and CustomBooks every 2 weeks. Most recently, FreeIReader was updated on November 5, 2026 and CustomBooks on October 31, 2026.

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