Comparison

Margins vs Book Sage

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

Head to head
About

Margins

This app helps you discover, track, and share your reading journey. It offers detailed tracking options, customizable features, and powerful search capabilities. Stay focused on your reading goals with built-in tools to minimize distractions.

Highlights
  • Half-star ratings
  • Track recommendations
  • Customizable book covers
  • Fuzzy date tracking
  • Advanced book search
  • Reading goals
  • Reading timer
  • Distraction blocking
Features
Read full description

Margins is a beautifully designed app for people who love books. - App of the Day in 20+ countries - 4.9 rating (40,000+ reviews) - Featured in USA Today, BookRiot, and more TRACK YOUR READING - Log books, series, authors, recommendations, and more - Track Strava-style goals, stats, and streaks - Curate lists of books you care about SEARCH BOOKS BY VIBES - Search books by mood, plot, setting, vibe, and more - Try things like “books like 1920s Paris,” “thriller with a love triangle,” or “indie romantasy” - You can even turn images from Pinterest or your camera roll into book recommendations BLOCK DISTRACTING APPS - Block social media, notifications, and other apps while you read - Use meditation reading timer for soothing rain sounds CHOOSE YOUR COVERS - Pick the cover that matches your version of the book - Curate covers to fit your aesthetic - Sort your library by color CUSTOMIZE YOUR PROFILE - Turn your picture into a sketched portrait you’d see in a book - Show off your favorite books SEE WHAT FRIENDS ARE READING - Find and follow other book lovers - See what they’re reading in Stories - Enjoy gorgeous, hand-illustrated monthly recaps INVITE YOUR BOOK CLUB - Schedule gatherings - Suggest and vote on books - Log your club’s history LEAVE GOODREADS FOR GOOD - Import from Goodreads, StoryGraph, and Fable - Half-star ratings - Support a small, indie team WHAT PEOPLE ARE SAYING “LOVE this app! so easy to import data from goodreads. it excels where others fail. like letterboxd for books. Really glad there’s finally a good book app out there, i’ve been waiting for something like this!” — scruffythejanitor01 “I love the UI of this app, easy to use and aesthetically pleasing. Also, I've been struggling getting back into reading and the screentime feature has helped me loads. I haven't been able to read this much since 4 years ago. Thank you Margins” — mitakaluvr “The search by vibes is so cool. I am a WWII buff, but this search popped up a two-book WWII saga I had never even heard of, much less read. It ended up being my top read of 2025.” —Michigancolt FREE TO USE Almost all features are free to use. An optional subscription unlocks premium features and priority support. FOLLOW US Instagram: @readwithmargins TikTok: @margins TERMS OF USE Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Margins Terms of Service: https://margins.app/terms Privacy Policy: https://margins.app/privacy “Without the margins, writing is just words on a page. But with them, each of us is invited to leave our mark in the endless conversation between books and the people that love them.” — Excerpt from the Margins manifesto

About

Book Sage

Features
Read full description

Turn reading into an epic adventure with the Book Sage Reading Quest! Go beyond a simple reading log and embark on an interactive journey where every book you read unlocks new possibilities. Track your progress on a visual trail, earn amazing rewards, and watch your unique "BookBuddy" companion grow with every page you turn! Designed by parents to encourage a love for reading, stories, and togetherness, Book Sage helps parents, teachers, librarians, and readers the track and score the quality of the books they read. Key Features: Easy Reading Tracker: Log books quickly by searching the title, scanning a barcode, or using your voice or camera AI Story Weaver & Chapter Book Creator: The ultimate tool for creative minds. Smart AI Recommendations & Evaluations: Find the perfect books and understand their content. Gamified Reading Trail: Make tracking progress fun and rewarding - earn more points for reading higher quality books Grow Your BookBuddy: A virtual pet that thrives on your reading success. Dozens of Badges & Prizes: Stay motivated with constant rewards for your achievements. Share Your Success: Easily email or share your reading summaries, book lists, and AI-generated stories with family and friends. Search for your recommended books in your local library. Join the quest, start your adventure, and make this a season of reading you'll never forget! Download Book Sage Reading Quest today!

Screenshots

Margins4 screens
Book Sage4 screens

Verdict

The call

The clearest difference is in-app purchases: Book Sage at none against Margins's 3. Book Sage also leads on iOS requirement (15.5 vs 17.0). Margins's advantage is chart position (#49 vs unranked). On price, update cadence, ads 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. Margins sells 3 in-app purchases, starting at $5.99 per month. Book Sage asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on November 9, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 8 level
Margins versus Book Sage: the parameters behind the verdict, then further details
ParameterMarginsBook Sage
PriceFreeFree
Rating4.9 (20K ratings) — better—
Positive reviews95.2% of reviews—
Number of ratings20K — better—
Update frequencyEvery 4 daysEvery 4 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#49 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.5 — better
Further details — not scored
Size115 MB8 MB
Age rating12+12+
DeveloperParatext Inc.Young Enterprise Solutions Limited Liability Company

Bugs and requests

Margins

Reported bugs

3 issues
  • Reading time not saving correctly
  • Inability to delete or edit books from lists
  • Inconsistent behavior when importing data from Goodreads

Requested features

4 requests
  • Add ability to track page progress and percentage read
  • Implement a profile system with custom avatars and bios
  • Introduce a social feed to share reading activity with friends
  • Add more advanced statistics and reading analytics

Book Sage

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Margins

Subscriptions3
  • Monthly$5.991 Month
  • Monthly$9.991 Month
  • Annual$59.991 Year
None

Book Sage

No in-app purchases

Questions

Is Margins free?
Margins is free to download, with in-app purchases available.
Is Book Sage free?
Book Sage is free to download, with no in-app purchases.
Do Margins or Book Sage have ads?
Neither Margins nor Book Sage shows ads.
Which is updated more often, Margins or Book Sage?
Margins ships an update every 4 days, and Book Sage every 4 days. Most recently, Margins was updated on November 9, 2026 and Book Sage on October 30, 2026.

Other comparisons