Comparison

O Sebo vs Leaf

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

Head to head
About

O Sebo

Buy and sell used books easily. Find great deals on pre-owned titles and offer your own books to a community of readers. A simple platform for book lovers to connect and trade.

Highlights
  • Buy used books
  • Sell used books
  • Book marketplace
  • Community trading
  • Pre-owned titles
Features
Read full description

No Sebo você pode comprar e vender livros usados.

About

Leaf

This app helps you build a consistent reading habit by tracking your progress page by page and setting daily goals. It offers features like reading streaks, dual goal-setting modes, and visual progress indicators. An AI assistant is available for Pro users to interact with their reading data.

Highlights
  • Daily reading streak counter
  • Flexible and fixed date goal setting
  • Visual progress indicator
  • AI assistant for reading queries (Pro)
  • Home screen widgets
  • Barcode scanning for book entry
  • Goodreads library import
Features
Read full description

Stop starting books you never finish. Leaf turns reading into a daily habit. Without the guilt. Track progress page by page, set a daily goal, and build the streak that keeps you reading. Or set a reading challenge: pick a few books, pick a finish date, and Leaf tells you how many pages to read each day. The first reading tracker connected to your AI assistant (Pro). READING STREAKS Build a consistent reading habit: - Daily streak counter with a weekly reading calendar - 3-hour grace period for late-night reading sessions - Missed a day? One tap to backdate yesterday's reading. No guilt, no penalty - Nine milestone levels from Sprout to Ancient, earned permanently even if your streak resets DUAL GOAL-SETTING MODES Choose the approach that fits your style: - Flexible Mode - set pages per day, Leaf calculates your finish date "I want to read 20 pages daily" - Fixed Date Mode - set a target date, Leaf calculates daily pages "I want to finish by March 15" READING CHALLENGES "5 books in 3 months." Leaf does the math. - Pick your books, pick a finish date - Leaf tells you how many pages to read today - Read extra today, and tomorrow's number goes down - Fall behind, and the number just updates. No penalty - Every week, an email and a notification with how you're doing - Finish, and get a recap you can share Reading challenges come with the Challenge Pass (3 months) or Leaf Pro. It's private. Just you and your books, no leaderboard. VISUAL PROGRESS TRACKING See exactly where you are and how far to go: - Circular progress indicator for each book - Quick-adjust buttons (−5, −1, +1, +5, +10) to log pages in seconds - Updates in one tap, not minutes ASK YOUR AI ASSISTANT (PRO) Your reading data is available via an MCP server: - "What am I reading?" Get your current book and progress - "Log 30 pages of my current book" updates without opening the app - "Add Atomic Habits, 320 pages" adds new books by voice or chat - Works with any MCP-compatible AI assistant Requires Leaf Pro. Set up at readwithleaf.app/integrations. HOME SCREEN WIDGETS Your reading at a glance, without opening the app: - Progress ring widget with today's streak and page goal - Book widget showing your current read and progress - Lock screen widget for quick check-ins SMART BOOK MANAGEMENT Add books in seconds: - Scan a barcode for instant lookup - no typing required - Search by title or ISBN - title, author, page count, and cover auto-filled - Import your Goodreads library in one step - bring your reading history with you - Manual entry for any book not in the database - Finish a book in a series? Leaf finds the next volume for you - Share a completion card when you finish a book - Bookshelf organized by currently reading, TBR, finished, and dropped READING JOURNAL Your complete reading history: - Current streak and all-time longest streak - Total pages read and books completed - Full stats for every book you finish: days taken, pages per day, best reading day - Book notes and quotes, saved by page - Export your book list to CSV anytime WHY READERS LOVE LEAF Free to use - tracking, streaks, goals, stats and import, no strings attached Works fully offline - no account required Dark-first design - comfortable for evening reading Available in 16 languages Works on iPhone and iPad LEAF PRO An optional upgrade for readers who want more: - Reading challenges (also sold on their own as a 3-month Challenge Pass) - Cloud sync across all your devices - Automatic backup - never lose your reading data - Ad-free experience - AI assistant integration (MCP server) - Cancel anytime PERFECT FOR - Readers who start more books than they finish - Anyone building a reading habit, one page at a time - Anyone building a reading journal and TBR list - Busy people fitting reading into a packed schedule - Goodreads users looking for a focused, offline-first alternative One page at a time.

Screenshots

O Sebo3 screens
Leaf4 screens

Verdict

The call

The clearest difference is in-app purchases: O Sebo at none against Leaf's 7. O Sebo also leads on iOS requirement (11.0 vs 16.4). Leaf's advantage is update cadence (every 3 days vs every 8 days) and ratings volume (9 vs 1). On price, rating, review sentiment 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 7 in-app purchases, starting at $2.99 per month. O Sebo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for O Sebo against 5.0 for Leaf. That said, the two scores are not equally well evidenced: Leaf has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

O Sebo ships an update every 8 days, Leaf every 3 days. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

Scorecard4 real differences · 6 level
O Sebo versus Leaf: the parameters behind the verdict, then further details
ParameterO SeboLeaf
PriceFreeFree
Rating5.0 (1 ratings)5.0 (9 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings19 — better
Update frequencyEvery 8 daysEvery 3 days — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better16.4
Further details — not scored
Size53 MB85 MB
Age rating4+4+
DeveloperRobson RibeiroVincent Ballut

Customer experience

O Sebo

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Leaf

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

O Sebo

No in-app purchases

7 purchases

Leaf

Subscriptions3
  • Leaf Pro Monthly$2.991 Month
  • Leaf Pro Annual1 Year trial$24.991 Year
  • Leaf Pro Annual1 Month trial$24.991 Year
One-time4
  • Small$1.99
  • Medium$4.99
  • 3-Month Challenge Pass$9.99
Show 1 more
  • Large$9.99

Questions

Is O Sebo free?
O Sebo 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, O Sebo or Leaf?
O Sebo and Leaf are both rated 5.0 out of 5 on the App Store, from 1 and 9 ratings respectively.
Do O Sebo or Leaf have ads?
Both O Sebo and Leaf show ads.
Which is updated more often, O Sebo or Leaf?
O Sebo ships an update every 8 days, and Leaf every 3 days. Most recently, O Sebo was updated on October 6, 2026 and Leaf on October 19, 2026.

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