Comparison

Seriatim Reader vs leaf

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

Head to head
About

Seriatim Reader

This app transforms books into a calm, focused reading experience by presenting text one sentence at a time. It's designed to reduce cognitive load and distractions, making reading easier for everyone, especially those with ADHD or who get overwhelmed by dense text. Customize your reading experience and access local AI tools for translation, text-to-speech, and plot questions.

Highlights
  • Sentence-by-sentence reading flow
  • Customizable text size, spacing, and speed
  • Local AI for translation and text-to-speech
  • Offline EPUB and PDF import
  • Distraction-free interface
  • Haptic feedback for progress
Features
Read full description

Reading shouldn’t feel exhausting. Seriatim Reader transforms books into a calm, focused flow designed for your phone. Forget overwhelming blocks of text, constant page turning, and losing your place. This is reading made for focus. How it Works Import your book and tap "Start." The interface disappears, presenting your book one sentence at a time in a vertical feed. * Tap to advance. * Swipe to navigate. * Focus entirely on the words. * It reduces cognitive load, making dense books feel lighter and easier to finish. Built for Focus & Neurodiversity We stripped away the distractions that make traditional reading apps difficult for many. Whether you have ADHD, get overwhelmed by "walls of text," or just want to read more on your commute, Seriatim helps you maintain momentum. * Focused-style anchors guide your eyes to word beginnings. * Letter-by-letter reveals smooth out the reading pace. * Haptic feedback gives you a tactile sense of progress. Read Your Way: Everything is customizable. Adjust text size, spacing, and reveal speed to match your brain’s processing style. If you get stuck, built-in local AI tools let you translate text, listen via text-to-speech, or ask questions about the plot to the local AI, all without leaving the page. * Private by Design: Your library belongs to you. * Import EPUB and PDF files easily. * Works 100% offline. * No accounts, no tracking, no ads. * All processing happens on your device. Rediscover the joy of finishing a book. Download Seriatim Reader and start reading differently.

About

leaf

This app offers a natural reading experience with customizable scrolling and page-turning options. Access thousands of free ebooks or import your own EPUB and PDF files. Organize your library, take notes, and create a personal reading journal.

Highlights
  • Vertical and horizontal scrolling
  • Import EPUB and PDF files
  • Access Project Gutenberg and Standard Ebooks
  • Bookmarks, highlights, and notes
  • Exportable Reading Journal
  • Library organization with shelves
  • iCloud syncing
Features
Read full description

leaf is a reading app built for your phone. Read with a natural vertical scroll, or turn pages with a page curl when you want a more traditional feel. leaf flows through your book the way your thumb already moves. And when your attention keeps sliding off the page, tap play. leaf sets a gentle pace and lights up each line as you go, so the book keeps moving and you do too. Browse and download thousands of free ebooks from Project Gutenberg and Standard Ebooks: classic literature, philosophy, fiction, and more. Import your own EPUB and PDF files too. No reading streaks. No goals. No ads. No noise. Just you and the book. READ ALONG Tap play and leaf sets the pace, lighting each line as you read Change the speed any time, pause with a tap, or step back a sentence Works with every reading style, and with PDFs READER - Three reading flows: page curl, slide, or continuous scroll - Vertical or horizontal page turns - Light, Dark, System, and E-Ink themes - Bookmarks, highlights, and notes - Multi-paragraph highlighting and sharing - Search within any book - Typefaces including Classic, Modern, Lexend, and Atkinson Hyperlegible - Adjust font size, spacing, and text density - Set a reading intention for each book - An exportable Reading Journal is created automatically when you highlight text or create a note PDFs - Read PDFs with the same reading flows as books - Pages follow your theme automatically, in light or dark - Columns are detected and shown one at a time, so the text is bigger and you never scroll sideways to read a line LIBRARY - Organise books into shelves - Filter by shelf, intention, or reading status - Sort by title, author, last opened, or shelf - View books as Grid or List - Search your entire library - Drop supported book files into the leaf folder and they'll appear in your library automatically - Use iCloud to share books between devices - Continue reading from your current book with the Home Screen widget CATALOG - Browse and download from Project Gutenberg and Standard Ebooks - Over 70,000 free classic and public domain titles - The Call of the Wild is included, so you can start reading straight away - Import your own EPUB and PDF files - Supports multiple file and folder import LEAF PRO - Six more themes: Sepia, Ivory, Mist, Forest, Midnight, and Amber Night - Three more typefaces (Literata, Spectral, and Merriweather) or import your own - Line, paragraph, and letter spacing - Sync your library across devices - Sync reading progress, highlights, notes, bookmarks, shelves, and Reading Journal entries Privacy Policy: https://readleaf.co/legal Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Seriatim Reader4 screens
leaf4 screens

Verdict

The call

The clearest difference is review sentiment: Seriatim Reader at 100% against leaf's 33%. Seriatim Reader also leads on rating (5.0 vs 3.8) and in-app purchases (none vs 2). On price, ratings volume, update cadence and ads 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. leaf sells 2 in-app purchases, starting at $1.99 per month. Seriatim Reader asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Seriatim Reader holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews point the same way: 100% of Seriatim Reader's written reviews are positive against 33% of leaf's.

UpkeepUpdate frequency

Seriatim Reader ships an update every 8 days, leaf weekly. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
Seriatim Reader versus leaf: the parameters behind the verdict, then further details
ParameterSeriatim Readerleaf
PriceFreeFree
Rating5.0 (4 ratings) — better3.8 (6 ratings)
Positive reviews100.0% of reviews — better33.3% of reviews
Number of ratings46 — better
Update frequencyEvery 8 daysWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.017.6 — better
Further details — not scored
Size132 MB75 MB
Age rating17+4+
DeveloperInvisible Hours UG (haftungsbeschrankt)Abraham Jesri

Customer experience

Seriatim Reader

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

leaf

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Seriatim Reader

No in-app purchases

2 purchases

leaf

Subscriptions2
  • Leaf Pro7 Days trial$1.991 Month
  • Leaf Pro7 Days trial$12.991 Year

Questions

Is Seriatim Reader free?
Seriatim Reader is free to download, with no in-app purchases.
Is leaf free?
leaf is free to download, with in-app purchases available.
Which has better reviews, Seriatim Reader or leaf?
Seriatim Reader is rated higher. Seriatim Reader averages 5.0 out of 5 from 4 ratings, while leaf averages 3.8 from 6 ratings.
Do Seriatim Reader or leaf have ads?
Neither Seriatim Reader nor leaf shows ads.
Which is updated more often, Seriatim Reader or leaf?
Seriatim Reader ships an update every 8 days, and leaf weekly. Most recently, Seriatim Reader was updated on September 22, 2026 and leaf on September 20, 2026.

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