Comparison

EonBook vs TomoTomo

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

Head to head
About

EonBook

Features
Read full description

EonBook is a minimalist ebook reader built for focused, comfortable, and distraction-free reading. Designed for readers who prefer a clean interface and complete control over their reading experience, EonBook keeps the focus on your books—not on ads, feeds, or unnecessary features. Key features: • Support for EPUB, MOBI, AZW3, and PDF • Smooth page turning and scrolling modes • Two-page layout for landscape reading on iPad • Customizable fonts, text size, line spacing, paragraph spacing, margins, and alignment • Adjustable reading themes and backgrounds • Highlight, bookmark, search, and manage important passages • Organize your library with folders, tags, and custom metadata • Reading progress and detailed reading statistics • Bilingual reading support for multilingual ebooks • Local file management for a private, independent library • Optimized reading experience for both iPhone and iPad EonBook Pro unlocks additional customization, organization, and reading statistics features with a one-time purchase. Whether you read literature, history, essays, or personal documents, EonBook is designed to help you slow down, stay focused, and enjoy every page.

About

TomoTomo

Seamlessly switch between reading ebooks and listening to audiobooks. Your progress is automatically synced across both formats, ensuring you never lose your place. Enjoy a clean, distraction-free experience with support for standard epub and audiobook files.

Highlights
  • Sync position between epub and audiobook
  • Switch between reading and listening
  • Automatic position carry-over
  • Distraction-free reading
  • Supports standard epub and audiobook formats
Features
Read full description

Read the book or listen to it. Switch from where you left off. Ask the AI questions about what you're reading. Have it generate images. This isn't a store and it isn't a subscription. If you already own the ebook and the audiobook, however you got them, TomoTomo just works with the files you have. No new library to buy into, no locking your books behind another app's account, no paying Amazon a second time for something you already paid for once. What it does: Reads your own EPUB and PDF files, full screen, nothing in your way Plays your own M4B and MP3 folder audiobooks, with real lock screen controls Pairs books to their audiobooks automatically, or manually if it guesses wrong Highlights the narrated sentence as you read, with word highlighting and a reading window if you want them Finds a passage in the text and jumps your spot to it Lets you highlight and keep notes as you read Asks an AI companion about your book, with spoiler-aware catch-ups Generates illustrations from passages, and custom covers Adjustable font, spacing, and five themes, including true black Playback speed and a sleep timer, because obviously Browses free public-domain books and audiobooks Keeps your files on your device. Reading, listening, page scanning and audio alignment all work without a connection Syncs your position, highlights and stats across your devices using an anonymous account. No email needed unless you choose to sign in No ads, no analytics, no tracking There's also an optional AI companion. Ask questions about the book you're reading, get caught up on the chapters so far, or talk through what just happened. You choose how much of the book it can see: just nearby text, everything up to where you are, or the whole book. Imagine turns a passage you're reading into an illustration, and you can generate a custom cover for any book or audiobook. Nothing is sent until you use one of these, and the app shows you what it will send first. Generated images stay on your device. That's it. No gamification, no login wall, no upsell before you've even started reading, no renting access to books you've already bought. Just your books, staying in sync.

Screenshots

EonBook4 screens
TomoTomo4 screens

Verdict

The call

The clearest difference is update cadence: EonBook at every 3 days against TomoTomo's every 5 days. EonBook also leads on iOS requirement (15.1 vs 17.0). 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. EonBook sells 1 one-off in-app purchase and TomoTomo sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

EonBook ships an update every 3 days, TomoTomo every 5 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 8 level
EonBook versus TomoTomo: the parameters behind the verdict, then further details
ParameterEonBookTomoTomo
PriceFreeFree
Rating—5.0 (10 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—10 — better
Update frequencyEvery 3 days — betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size59 MB88 MB
Age rating4+4+
Developer海声 池Tyler Mulvey

In-app purchases

1 purchases

EonBook

One-time1
  • Unlock Pro$5.99
5 purchases

TomoTomo

One-time5
  • imagine — 15 images$2.99
  • companion — 50 messages$4.99
  • pdf audio — 10,000 characters$4.99
Show 2 more
  • pdf audio — 25,000 characters$11.99
  • pdf audio — 50,000 characters$23.00

Questions

Is EonBook free?
EonBook is free to download, with in-app purchases available.
Is TomoTomo free?
TomoTomo is free to download, with in-app purchases available.
Do EonBook or TomoTomo have ads?
Neither EonBook nor TomoTomo shows ads.
Which is updated more often, EonBook or TomoTomo?
EonBook ships an update every 3 days, and TomoTomo every 5 days. Most recently, EonBook was updated on October 31, 2026 and TomoTomo on October 31, 2026.

Other comparisons