Comparison

PDF Reader vs TomoTomo

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

Head to head
About

PDF Reader

This app helps you track your reading progress for PDF documents. It allows you to sync your PDFs and reading status across multiple devices for a seamless experience. Customize your reading environment for optimal comfort.

Highlights
  • Track reading progress
  • Sync PDFs and progress across devices
  • Configurable reading experience
  • Document reader functionality
Features
Read full description

Track your reading progress of your PDFs. Sync the pdfs and your progress between devices. Configurable reading experience. EULA: http://www.apple.com/legal/itunes/appstore/dev/stdeula Privacy: https://privacy.logicalmagic.tech/

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

PDF Reader4 screens
TomoTomo4 screens

Verdict

The call

The clearest difference is ads: TomoTomo at none against PDF Reader's shown. TomoTomo also leads on monetization model (free vs free with in-app purchases) and update cadence (every 6 days vs monthly). On price, rating, 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. PDF Reader sells 3 in-app purchases, starting at $2.99 per month and TomoTomo sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for PDF Reader against 5.0 for TomoTomo. That said, the two scores are not equally well evidenced: TomoTomo has 10 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

PDF Reader ships an update monthly, TomoTomo every 6 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
PDF Reader versus TomoTomo: the parameters behind the verdict, then further details
ParameterPDF ReaderTomoTomo
PriceFreeFree
Rating5.0 (2 ratings)5.0 (10 ratings)
Positive reviews—100.0% of reviews
Number of ratings210 — better
Update frequencyMonthlyEvery 6 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.217.0 — better
Further details — not scored
Size8 MB89 MB
Age rating4+4+
DeveloperLogical Magic IncTyler Mulvey

Customer experience

PDF Reader

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

TomoTomo

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

PDF Reader

Subscriptions2
  • Pro Monthly$2.991 Month
  • Pro Yearly$24.991 Year
One-time1
  • Lifetime Pro$49.99
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 PDF Reader free?
PDF Reader is free to download, with in-app purchases available.
Is TomoTomo free?
TomoTomo is free to download, with in-app purchases available.
Which has better reviews, PDF Reader or TomoTomo?
PDF Reader and TomoTomo are both rated 5.0 out of 5 on the App Store, from 2 and 10 ratings respectively.
Do PDF Reader or TomoTomo have ads?
PDF Reader shows ads; TomoTomo does not.
Which is updated more often, PDF Reader or TomoTomo?
PDF Reader ships an update monthly, and TomoTomo every 6 days. Most recently, PDF Reader was updated on October 30, 2026 and TomoTomo on November 5, 2026.

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