Comparison

The ARC Library vs Margin

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

Head to head
About

The ARC Library

Manage your book review workflow with this comprehensive tool. Track ARCs, deadlines, reading progress, and create polished reviews. Features include detailed statistics, a content creator hub, and a public reader profile.

Highlights
  • Track ARCs by ISBN, title, or barcode
  • Interactive reading calendar with deadlines
  • Detailed reading statistics and analytics
  • Rich text review editor with checklist
  • Content creator hub for social media campaigns
  • Public reader profile for showcasing stats
  • TBR spin wheel and Bingo Challenge
Features
Read full description

ARC Library is the all-in-one platform for ARC readers, reviewers, book content creators, and authors. Whether you're keeping an overflowing ARC list under control or running your own ARC campaigns, ARC Library brings your books, deadlines, reviews, teams, campaigns, and reader connections together in one place. FOR READERS TRACK YOUR ARCS Add books by title, ISBN, or barcode and keep track of everything from received to reviewed. Log your reading progress by pages, audio minutes, or percentage, and use reading pace calculations to stay ahead of deadlines. NEVER MISS A DEADLINE See publication dates, review deadlines, PR tasks, and other important dates in your reading calendar. Due-soon alerts help you see what needs your attention next. REVIEW EDITOR Write and save reviews directly in ARC Library. Keep notes and quotes while you read, use structured review prompts, and copy your finished review when you're ready to post. READING STATISTICS Explore detailed statistics covering your ARCs, personal books, reviews, teams, PR activity, ratings, genres, reading habits, and more. SPICE AND SWOON RATINGS Track spice and swoon levels for your books, explore your rating distributions, and filter your library by level. CONTENT CREATOR TOOLS Keep track of cover reveals, release posts, reviews, PR campaigns, and other content across your social channels. YOUR ARC READER PROFILE Create a shareable reader profile featuring your reading activity, reviews, favorite genres, social links, and more. Give authors and publishers a better picture of who you are as a reviewer. DISCOVER NEW OPPORTUNITIES Browse forms shared by authors for ARC applications, teams, campaigns, and other opportunities. TBR TOOLS Not sure what to read next? Use the TBR Spin Wheel, reading challenges, and other tools to make choosing your next book a little more fun. FOR AUTHORS MANAGE YOUR BOOKS Keep your books and their ARC information organized in one place. RUN ARC CAMPAIGNS Create and manage ARC campaigns, organize applications, work with readers, and keep track of your campaign from start to finish. FIND ARC READERS Use the Reader Database to discover readers based on genres, tropes, social platforms, activity, and other information they choose to share. CREATE AND SHARE FORMS Create forms for ARC applications, reader teams, PR campaigns, and more. Share them directly or make them discoverable through the ARC Library Form Catalog. MANAGE YOUR READERS Keep your ARC readers and campaign information organized without relying on scattered spreadsheets, forms, messages, and notes. BUILD YOUR TEAMS Create and manage reader teams and keep the people supporting your books connected to your campaigns. ONE LIBRARY, TWO SIDES OF THE ARC EXPERIENCE ARC Library brings readers and authors together while giving each side the tools they need. Readers get a home for their ARCs, reviews, deadlines, statistics, teams, and content. Authors get tools to manage books, campaigns, applications, readers, and ARC teams. FREE TO START Get started with ARC Library for free, with optional Premium plans unlocking additional tools, customization, statistics, and features. Built by a reader who wanted a better way to manage the beautifully chaotic world of ARCs. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms & Conditions: https://arc-library.com/terms Privacy Policy: https://arc-library.com/privacy

About

Margin

Features
Read full description

Margin is a calm reading-streak app. Read a little every day and watch the days add up. Keep a streak Log minutes with a focus timer or by hand, set a daily goal, and see every reading day on a calendar beside your stats. Gentle reminders help you keep going without nagging. Read in Margin Open your own EPUB and PDF books in a reader built for long sessions: a page curl that follows your finger, themes and fonts, a contents view with page numbers, search, bookmarks, highlights and notes. Your place follows you from iPhone to iPad to the web, down to the sentence. Your library, organised Add books by title, by scanning a barcode, or by taking a photo of the cover. Sort them into collections like Research or Computer Vision, tag genres, and track what you want to read, are reading, and have finished. Covers are found for you, or use the first page of a PDF. Read aloud Record chapters as you read, keep reading while it records, and play them back from the book's page. Export a recording as a video with the book's cover, ready to share. Works with your AI assistant Connect any AI assistant that supports MCP to your library. Your assistant can see what you're reading, log sessions, add books, make collections and set genres, with access you approve and can revoke. Margin Plus Everything above is free, including up to five uploaded books of 5 MB each. Margin Plus adds unlimited uploads up to 150 MB each, video export of recordings, and book recognition from photos. Choose monthly, yearly, or a one-time lifetime purchase. If Plus ends, nothing is locked: every book you have stays readable. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and can be managed in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://margin.pstepanov.dev/privacy

Screenshots

The ARC Library4 screens
Margin4 screens

Verdict

The call

The ARC Library and Margin are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. The ARC Library sells 4 in-app purchases, starting at $2.99 per month and Margin sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
The ARC Library versus Margin: the parameters behind the verdict, then further details
ParameterThe ARC LibraryMargin
PriceFreeFree
Rating5.0 (10 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 9 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.4
Further details — not scored
Size105 MB74 MB
Age rating9+4+
DeveloperRomana AdamkaPavel Stepanov

In-app purchases

4 purchases

The ARC Library

Subscriptions4
  • ARC Addon (Monthly)$2.991 Month
  • ARC Library Premium (Monthly)7 Days trial$7.991 Month
  • ARC Addon (Yearly)$29.991 Year
Show 1 more
  • ARC Library Premium (yearly)7 Days trial$79.991 Year
3 purchases

Margin

Subscriptions2
  • Margin Plus Monthly$2.991 Month
  • Margin Plus Yearly$24.991 Year
One-time1
  • Margin Plus Lifetime$49.99

Questions

Is The ARC Library free?
The ARC Library is free to download, with in-app purchases available.
Is Margin free?
Margin is free to download, with in-app purchases available.
Do The ARC Library or Margin have ads?
Neither The ARC Library nor Margin shows ads.

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