Comparison

Vox libri vs Paperback Mobile

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

Paperback Mobile

Features
Currently charting
Read full description

Paperback is a fast, fully accessible reader for ebooks, documents and audio books. It opens over twenty formats and speaks fifteen languages. Paperback has two ways to read a document. In text mode, you read the text with your screen reader. In read aloud mode, Paperback reads the text to you with the voice you pick in Settings, and keeps going in the background and from the lock screen. Switch between them from the More Options menu. Audio books, like DAISY, M4B, and MP3 books, play their own recording instead. The reading bar The bar at the bottom of the screen has, from left to right: • The navigation unit, such as paragraph, heading, page, or link. Swipe up or down on it to change it. • Previous, play, and next buttons. Previous and next move by the navigation unit. • The speech rate. Swipe up or down on it to change how fast Paperback reads. You can also swipe up or down on the play button to move by the navigation unit, without reaching for the previous and next buttons. If that is all you use, the Hide previous and next buttons setting takes them out of your screen reader’s way. The Swipe up moves forward setting picks which way a swipe goes. The More Options menu is where everything else lives. • Switch to TTS Mode or Switch to Text Mode: moves between read aloud mode and text mode, described above. In text mode, a Read Aloud item starts and pauses reading aloud without leaving text mode. • Table of Contents: the book’s chapters, opened at the one you’re reading. Pick one to go straight to it. Entries with chapters under them can be expanded and collapsed with VoiceOver actions. • Elements: a list of the document’s headings or links. Switch between the two with the Type picker, then pick one to go to it. • Find: type what to look for, or pick an earlier search from Search History, and choose whether to match case, match whole words only, or use a regular expression. Find Previous and Find Next jump to a match and say where it landed, and Find stays open so you can keep going. In read aloud mode, Find also shows up as a navigation unit on the reading bar, so you can step through the matches from there too. • Go To: jump to a line, a page, or a percentage through the document. Pick which with the Mode picker. • Recent Documents: every document you’ve opened, each marked as currently open, closed, or file missing. Each one has two VoiceOver actions: Remove takes it off the list, and Locate lets you find a document whose file has moved. Clear Recent Documents empties the list without deleting any documents. • Word Count: the number of words in the document. • Document Info: the title, the author, the file name, and the line and character counts. • Export: saves the document as plain text, HTML, or Markdown. • Sleep Timer: stops reading after 5, 10, 15, 30, 45, or 60 minutes, or a time of your own. Open it again while it’s running to see how long is left, or to cancel it. • Help: opens the readme. • Settings: ◦ Text to speech: the voice, speech rate, and pitch, a Play Sample button to hear them, and the pause between paragraphs. This is also where the speech dictionary is: rules that change how words are spoken, for every voice or just some. ◦ Readability: text size, line spacing, paragraph spacing, alignment, and high contrast text, as well as light and dark appearance. ◦ Behavior: whether to reopen your documents when the app starts, which way a swipe on the play button moves, and whether to hide the previous and next buttons.

Screenshots

Vox libri4 screens
Paperback Mobile4 screens

Verdict

The call

The clearest difference is price: Vox libri at $4.99 against Paperback Mobile's $19.99. Vox libri also leads on device support (4 vs 2). Paperback Mobile's advantage is chart position (#6 vs unranked). 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 Paperback Mobile $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences · 8 level
Vox libri versus Paperback Mobile: the parameters behind the verdict, then further details
ParameterVox libriPaperback Mobile
Price$4.99 — better$19.99
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 11 days—
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
Best chart rank—#6 — better
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size39 MB18 MB
Age rating4+4+
DeveloperJonathan Chacon BarberoTy Gillespie

In-app purchases

None

Vox libri

No in-app purchases

None

Paperback Mobile

No in-app purchases

Questions

Is Vox libri free?
Vox libri costs $4.99, with no in-app purchases.
Is Paperback Mobile free?
Paperback Mobile costs $19.99, with no in-app purchases.
Do Vox libri or Paperback Mobile have ads?
Neither Vox libri nor Paperback Mobile shows ads.

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