Comparison

Vox libri vs ZeroBooks Reader

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

Head to head
About

Vox libri

This app offers a flexible and personalized reading experience for books and documents. It supports various reading methods including text-to-speech, braille displays, and customizable on-screen options. Enjoy your content comfortably and accessibly, with features like AI translation and smart navigation.

Highlights
  • High-quality text-to-speech
  • Braille display compatibility
  • Customizable reading screen
  • Support for multiple document formats
  • Fully accessible interface
  • Smart navigation
  • On-device AI translation and summarization
Features
Read full description

Read your way: accessible, comfortable, and without barriers. Vox Libri is designed to help anyone read books and documents in a flexible, personalized, and fully accessible way. Whether you prefer reading on screen, using a braille display, or listening with high-quality text-to-speech, enjoying your content has never been easier. Lightweight, fast, and built for readers who want a comfortable, distraction-free, and inclusive reading experience. Key Features • High-quality text-to-speech for natural and expressive read-aloud. This application uses the voices installed on your device. • Braille reading mode, fully compatible with braille displays. • Customizable reading screen with adjustable font, size, colors, spacing, and themes. • Support for major document formats, including TXT, PDF, DOCX, RTF, HTML, Markdown, and EPUB. • Fully accessible interface, optimized for blind users, low-vision users, and people with reading difficulties. • Smart navigation through chapters, headings, pages, bookmarks, and document sections. • Hands-free reading via headphone controls. • On-device AI translation, summarization, and simplification when supported by the device. • Full Spanish, English, Italian, French and Greek support across the interface and reading experience. Vox Libri is perfect for people with dyslexia, low vision, braille users, students, professionals, or anyone who wants a more comfortable and customizable reading experience. Carry your entire library with you and read however you prefer.

About

ZeroBooks Reader

Features
Read full description

ZeroBooks Reader brings a new generation of reading experience to books and documents alike. • Advanced text recognition (OCR) • AI voices and AI-powered OCR • Background sounds • Customizable speed settings • Customizable pronunciation options • Multi-language support • Notes, and cross-references between them • Quotes taken straight from a document • Bookmarks • Select a passage of a spoken document and turn it into a repeating loop • Turn a selected passage into a separate document • Organize files into collections • Convert documents between formats • Edit documents • Formatting such as bold and italic, and moving between formatted content With all of this, ZeroBooks Reader gives you a fluent and comfortable reading and listening experience. NOTE: AI voices and AI OCR require API keys from third-party AI providers, which are supplied by the user. The voices of the device's own on-device speech engine are always available.

Screenshots

Vox libri4 screens
ZeroBooks Reader4 screens

Verdict

The call

The clearest difference is price: Vox libri at $4.99 against ZeroBooks Reader's $9.99. Vox libri also leads on device support (4 vs 2). ZeroBooks Reader's advantage is update cadence (every 5 days vs every 11 days). On ads, in-app purchases and iOS requirement 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

Vox libri costs $4.99 and ZeroBooks Reader $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Vox libri ships an update every 11 days, ZeroBooks Reader every 5 days. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
Vox libri versus ZeroBooks Reader: the parameters behind the verdict, then further details
ParameterVox libriZeroBooks Reader
Price$4.99 — better$9.99
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 11 daysEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size39 MB666 MB
Age rating4+17+
DeveloperJonathan Chacon BarberoMERIC KARACA

In-app purchases

None

Vox libri

No in-app purchases

None

ZeroBooks Reader

No in-app purchases

Questions

Is Vox libri free?
Vox libri costs $4.99, with no in-app purchases.
Is ZeroBooks Reader free?
ZeroBooks Reader costs $9.99, with no in-app purchases.
Do Vox libri or ZeroBooks Reader have ads?
Neither Vox libri nor ZeroBooks Reader shows ads.
Which is updated more often, Vox libri or ZeroBooks Reader?
Vox libri ships an update every 11 days, and ZeroBooks Reader every 5 days. Most recently, Vox libri was updated on October 9, 2026 and ZeroBooks Reader on October 13, 2026.

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