Comparison

Adopt a Book vs StoryGraph

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

Head to head

Adopt a Book

Give a book another home

StoryGraph ∙ Book Scanner

Free

📚 Books

No ratingsView app →

About

Adopt a Book

Features

Read full description

This app enables you to: * Manage your book inventory * Scan books with ISBN * Add book reviews * Follow friends and get recommendations * Share (lend, giveaway, sell) and request books * Track your lent books * Start conversations with people regarding books * View Best Seller books

About

StoryGraph

Features

Read full description

HOW IT WORKS? Snap a photo of book cover, and our app will analyze the content and generate a clear summary in seconds. No typing, no searching—just point, capture, and understand it before you buy. Perfect for students, readers, and busy minds who want to learn faster and retain more. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Adopt a Book4 screens

StoryGraph4 screens

Verdict

The call

The clearest difference is in-app purchases: Adopt a Book at none against StoryGraph's 2. Adopt a Book also leads on iOS requirement (15.5 vs 17.6). StoryGraph's advantage is ads (none vs shown) and update cadence (every 2 days vs every 2 weeks). On price 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. StoryGraph sells 2 in-app purchases, starting at $4.99 per month. Adopt a Book asks for nothing beyond the download.

UpkeepUpdate frequency

Adopt a Book ships an update every 2 weeks, StoryGraph every 2 days. Both last shipped on October 25, 2026.

Scorecard4 real differences · 2 level

Adopt a Book versus StoryGraph: the parameters behind the verdict, then further details
Parameter	Adopt a Book	StoryGraph
Price	Free	Free
Update frequency	Every 2 weeks	Every 2 days — better
Ads	Yes	No — better
In-app purchases	No — better	Yes
Devices	iPhone, iPod — better	iPhone
Requires iOS	15.5 — better	17.6
Further details — not scored
Size	101 MB	2 MB
Age rating	17+	4+
Developer	Praneeth Peiris	Igor Stojanovic

In-app purchases

None

Adopt a Book

No in-app purchases

2 purchases

StoryGraph

Subscriptions2

Month Subscription3 Days trial$4.991 Month
Year Subscription3 Days trial$24.991 Year

Questions

Is Adopt a Book free?

Adopt a Book is free to download, with no in-app purchases.

Is StoryGraph free?

StoryGraph is free to download, with in-app purchases available.

Do Adopt a Book or StoryGraph have ads?

Adopt a Book shows ads; StoryGraph does not.

Which is updated more often, Adopt a Book or StoryGraph?

Adopt a Book ships an update every 2 weeks, and StoryGraph every 2 days. Most recently, Adopt a Book was updated on October 25, 2026 and StoryGraph on October 25, 2026.