Comparison

FinnBook vs Unison Reader

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

Head to head
About

FinnBook

Features
Read full description

FinnBook is an ebook reader for iPhone and iPad that handles the books you already have and shows you what you've read. Free, forever • Read EPUB and DRM-free Kindle books (MOBI and AZW3) • Browse and download from your Calibre server, or from the free Project Gutenberg library • Light, Dark, Sepia and Dusk themes, with your choice of font, text size, line height and margins • Bookmarks, search and a table of contents FinnBook Pro (optional subscription) FinnBook Pro is an auto-renewing subscription, available monthly ($1.99) or yearly ($19.99, with a one-week free trial). It adds: • Read aloud with four English voices, offline listening after a one-time voice download, text highlighting, and adjustable speed • Reading statistics that measure the time you spend reading, not the time a book sits open: daily goals, streaks, a year of reading in one chart, and which books took the hours • Custom reading themes • FinnBook Cloud: sign in with Apple to sync your books, reading progress, bookmarks, themes and stats between your iPhone and iPad • Update a book's cover and details from Hardcover Payment is charged to your Apple ID at confirmation. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. You can manage or cancel it in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://finnbook.app/privacy

About

Unison Reader

This app allows you to seamlessly switch between reading an ebook and listening to its audiobook. It synchronizes narration with text, offers generated voices for ebooks without audiobooks, and supports various file formats. Customize your reading experience with adjustable layouts, speeds, and appearance settings.

Highlights
  • Read and listen in sync
  • Generated voices for ebooks
  • Text generation from audiobooks
  • Import various file formats (EPUB, PDF, DOCX)
  • Customizable reading layouts and appearance
  • Highlighting, bookmarking, and word lookup
  • iCloud library synchronization
Features
Read full description

Your ebook. Your audiobook. One place in the story. Bring both versions of a book to Unison Reader and move seamlessly between reading and listening. Follow your audiobook's narrator in the text, word by word, then pick up reading where you left off. READ AND LISTEN TOGETHER Add your audiobook to its matching ebook. Unison Reader aligns the narration with the text on your device, so you can listen, read along, or switch between the two without hunting for your place. START WITH WHAT YOU HAVE Only have the ebook? Choose a voice generated on your device to read it aloud. Only have the audiobook? Unison Reader can generate text from its narration. These options help you read and listen even when you do not have both versions. YOUR BOOKS, YOUR LIBRARY Import EPUBs, PDFs, Word documents, plain text, Markdown, HTML, and other supported book files. Browse Project Gutenberg and Standard Ebooks, or download books and audiobooks from your own supported library server. MAKE READING COMFORTABLE Choose a paged, scrolling, or caption layout. Adjust appearance, listening speed, word emphasis, and how the text follows the voice. Save highlights and bookmarks, look up words, and adjust pronunciations. AT HOME ON YOUR DEVICES Sync your library through your own iCloud account when iCloud Drive is available. Speech generation and audiobook alignment happen on your device. Generated audio is prepared while Unison Reader is open; prepared audio continues playing with the screen locked. TRY LISTENING Reading is free. One hour of listening in step with the text is included. A one-time in-app purchase unlocks continued listening with your own audiobook or a generated voice. No subscription. Bring your own book and audiobook files; commercial titles are not included.

Screenshots

FinnBook4 screens
Unison Reader3 screens

Verdict

The call

The clearest difference is update cadence: Unison Reader at every 2 days against FinnBook's every 4 days. On price, ads, in-app purchases 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. FinnBook sells 2 in-app purchases, starting at $1.99 per month and Unison Reader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FinnBook ships an update every 4 days, Unison Reader every 2 days. Both last shipped on October 24, 2026.

Scorecard1 real difference · 9 level
FinnBook versus Unison Reader: the parameters behind the verdict, then further details
ParameterFinnBookUnison Reader
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS26.026.0
Further details — not scored
Size38 MB223 MB
Age rating4+12+
DeveloperMaziar RezvaniMagrathea Software, LLC

In-app purchases

2 purchases

FinnBook

Subscriptions2
  • FinnBook Pro$1.991 Month
  • FinnBook Pro7 Days trial$19.991 Year
1 purchases

Unison Reader

One-time1
  • Listening unlock$4.99

Questions

Is FinnBook free?
FinnBook is free to download, with in-app purchases available.
Is Unison Reader free?
Unison Reader is free to download, with in-app purchases available.
Do FinnBook or Unison Reader have ads?
Neither FinnBook nor Unison Reader shows ads.
Which is updated more often, FinnBook or Unison Reader?
FinnBook ships an update every 4 days, and Unison Reader every 2 days. Most recently, FinnBook was updated on October 24, 2026 and Unison Reader on October 24, 2026.

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