Comparison

Leviathan vs Shelf Scan

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

Head to head
About

Leviathan

Features
Read full description

LEVIATHAN: an interactive comic by Jason Shiga A seaside village – and a monstrous threat. Explore as you choose, by day or by night. Can you unravel the secrets of history and defeat the Leviathan? LEVIATHAN is not an ordinary comic. YOU make the choices that determine how the story unfolds. LEVIATHAN splits off into hundreds of different adventures. - A thrilling adventure of monsters, myths, and magic on the high seas (and the islands in between them). - Completely redesigned by the author for an infinite scrollable canvas. - Full audio accessibility with VoiceOver; every panel and choice can be spoken.

About

Shelf Scan

Instantly identify books from a photo of any bookshelf using AI. See ratings at a glance and discover your next great read. Integrates with your reading list to highlight books you want to read.

Highlights
  • Instant book recognition from shelf photos
  • View book ratings at a glance
  • Reading list integration
  • Smart highlighting of to-read books
  • Scan history saving
  • No account required for basic use
Features
Read full description

Overwhelmed by endless bookshelves? Can't decide which book to read next? Shelf Scan uses AI to instantly identify books from a single photo and shows you the highest-rated titles at a glance. Whether you're browsing a bookstore, library, or your own collection, find your next great read in seconds. HOW IT WORKS: -Snap a photo of any bookshelf -AI identifies every book spine instantly -See ratings for each book -Discover which books are on your reading list -Find the highest-rated books immediately KEY FEATURES: -Instant Book Recognition Point your camera at a bookshelf and watch the magic happen. Our AI identifies multiple books simultaneously from spine text alone. -Ratings at a Glance Every book shows its rating so you can spot the gems instantly. Sort by rating to find the best books first. -Reading List Integration Import your Goodreads reading list and instantly see which books are yours. No more forgetting what's on your to-read list! -Smart Highlighting Books on your reading list are automatically highlighted with a special badge. Never miss a book you've been meaning to read. -Scan History Save your scans and revisit them later. Perfect for tracking books you discovered at different locations. -Works Everywhere Bookstores, libraries, friends' homes, thrift stores, used book sales - if there's a bookshelf, we can scan it. -No Account Required Use the app instantly without signing up. Create an optional account to save scans and sync your reading list. PERFECT FOR: -Book lovers browsing bookstores or libraries -Readers trying to remember what's on their to-read list -Anyone overwhelmed by too many book choices -Library visitors who want to find the best books quickly -Book collectors organizing their shelves -Gift shoppers looking for highly-rated books WHY Shelf Scan? Stop wasting time checking every book individually on your phone. One photo gives you everything you need to make an informed choice. Find hidden gems, avoid disappointing reads, and never forget which books you wanted to read. PRIVACY FIRST: -Use without an account (guest mode) -Images processed temporarily, never stored permanently -You control all your data -No ads, no tracking, no data selling -Download Shelf Scan today and transform how you discover your next favorite book!

Screenshots

Leviathan4 screens
Shelf Scan4 screens

Verdict

The call

The clearest difference is price: Shelf Scan at Free against Leviathan's $3.99. Shelf Scan also leads on update cadence (monthly vs every 11 months). On ads, in-app purchases, device support and iOS requirement 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

Shelf Scan is free to download; Leviathan costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Leviathan ships an update every 11 months, Shelf Scan monthly. The most recent releases landed on September 18, 2026 and September 12, 2026 respectively.

Scorecard2 real differences · 8 level
Leviathan versus Shelf Scan: the parameters behind the verdict, then further details
ParameterLeviathanShelf Scan
Price$3.99Free — better
Rating—3.5 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 11 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.5 — better
Further details — not scored
Size49 MB26 MB
Age rating12+4+
DeveloperZarfhome Software ConsultingDaniel Anthony Dolewski Ii

In-app purchases

None

Leviathan

No in-app purchases

None

Shelf Scan

No in-app purchases

Questions

Is Leviathan free?
Leviathan costs $3.99, with no in-app purchases.
Is Shelf Scan free?
Shelf Scan is free to download, with no in-app purchases.
Do Leviathan or Shelf Scan have ads?
Neither Leviathan nor Shelf Scan shows ads.
Which is updated more often, Leviathan or Shelf Scan?
Leviathan ships an update every 11 months, and Shelf Scan monthly. Most recently, Leviathan was updated on September 18, 2026 and Shelf Scan on September 12, 2026.

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