Comparison

OSAGE Books vs Leviathan

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

Head to head
About

OSAGE Books

Explore published works from the Osage Nation, including the story "Coyote and the Bear." This app uses technology to promote Osage language, culture, and traditions, offering enhanced educational outreach and distance learning. It also features augmented reality scanning for an immersive reading experience.

Highlights
  • Osage Nation published works
  • Features "Coyote and the Bear"
  • Promotes Osage language and culture
  • Augmented Reality scanning
  • Educational outreach
  • Distance learning opportunities
Features
Read full description

The “Osage Books” app is a location for published works of the Osage Nation featuring the initial story, “Coyote and the Bear.” The app aims to further the goal of protecting and promoting the language, culture, and traditional ways of the Osage people utilizing technology which increases the educational outreach and distance learning opportunities of our constituents. Any Osage books that have an Augmented Reality option can be scanned with this app for a more immersive reading experience.

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.

Screenshots

OSAGE Books4 screens
Leviathan4 screens

Verdict

The call

The clearest difference is price: OSAGE Books at Free against Leviathan's $3.99. OSAGE Books also leads on iOS requirement (14.0 vs 17.6). On update cadence, ads, in-app purchases 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

OSAGE Books 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

OSAGE Books ships an update every 14 months, Leviathan every 12 months. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 7 level
OSAGE Books versus Leviathan: the parameters behind the verdict, then further details
ParameterOSAGE BooksLeviathan
PriceFree — better$3.99
Rating5.0 (5 ratings) — better—
Number of ratings5 — better—
Update frequencyEvery 14 monthsEvery 12 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better17.6
Further details — not scored
Size275 MB50 MB
Age rating4+12+
DeveloperMacLean Engineering and Applied Technologies, LLCZarfhome Software Consulting

In-app purchases

None

OSAGE Books

No in-app purchases

None

Leviathan

No in-app purchases

Questions

Is OSAGE Books free?
OSAGE Books is free to download, with no in-app purchases.
Is Leviathan free?
Leviathan costs $3.99, with no in-app purchases.
Do OSAGE Books or Leviathan have ads?
Neither OSAGE Books nor Leviathan shows ads.
Which is updated more often, OSAGE Books or Leviathan?
OSAGE Books ships an update every 14 months, and Leviathan every 12 months. Most recently, OSAGE Books was updated on November 3, 2026 and Leviathan on October 29, 2026.

Other comparisons