Comparison

CastLoop vs Amber

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

Head to head
About

CastLoop

Experience interactive stories where your choices shape the narrative. Engage with cinematic adventures or write your own AI-generated novels, complete with custom illustrations. Explore a vast library of genres and find your next immersive tale.

Highlights
  • AI-generated interactive novels
  • Cinematic story games
  • Choice-based gameplay
  • AI-generated illustrations
  • Genre browsing
  • Customizable story preferences
Read full description

A dangerous crush. A suspicious ally. One very bad idea. Welcome to CastLoop, where stories are made to be played. Watch cinematic stories and choose your next move. Or step into an interactive novel: pick a suggested action or write your own, and let AI continue the story. Your novel can have pictures, too. Illustrated mode adds two AI-generated images to each new turn. Keep reading while they load, or switch to text-only mode for your next turn. In supported cinematic stories, choice hints show effects or requirements before you tap, and on-screen stats let you follow changes as you play. Browse by genre and set your story preferences to find your next adventure. CastLoop+ includes unlimited text-only generation in interactive novels. Illustrated turns cost 10 Diamonds with membership or 20 Diamonds without it. Nonmembers can generate text-only turns for 5 Diamonds. Illustrated generation still requires Diamonds. Subscriptions and other in-app purchases are available. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Amber

Features
Read full description

Stories that shaped how people think, lead, dream and fear. Now on your screen, complete and playable. Philosophy. Strategy. Horror. Myth. Detective cases. Fairy tales. Timeless fiction. Each one rebuilt as an interactive edition. Pick a work. Press play. MEMBERSHIP OPENS EVERYTHING One membership unlocks every work in the collection and everything inside it. No separate purchases, no locked chapters, no advertising. PLAY THE STORY Every work has its own games, built from its own material: sliding puzzles cut from its artwork, memory matching, identify the scene, spot the false statement, and a spinner that picks where you go next. Every round is drawn from the work itself, so no two are the same. DECIDE, THEN FIND OUT WHY Interactive scenarios put you inside decisive moments and ask what you would do. Choose, then read the reasoning behind each answer and earn progress for thinking it through. LISTEN ANYWHERE Turn any work into continuous narration with adjustable voices and speed, background playback and lock screen controls. It keeps reading while your screen is off. READ THE COMPLETE TEXT The full text of every work, unabridged, in a reading view built for it. Illustrated throughout with original artwork made for these editions. EXPLORE THE WORLD AROUND IT Character profiles that change as the story moves. Glossaries that explain what a footnote would have. Timelines, locations, quotations and curated paths through the themes that run underneath. TRACK WHAT YOU FINISH Progress, streaks, ranks and achievements for each work separately, so one journey never collapses into another. WORKS WITH NO SIGNAL Every word, every illustration and every game is installed with the app. No internet connection is needed to use it, no account, no sign-in, and nothing about what you read leaves your device. IN THE COLLECTION NOW The Odyssey · Dracula · Frankenstein · The Picture of Dorian Gray · The Great Gatsby · Alice's Adventures in Wonderland · The Adventures of Sherlock Holmes · Meditations · The Prince · The Art of War · The Richest Man in Babylon · Blue Fairy Tales · Red Fairy Tales · Green Fairy Tales · Yellow Fairy Tales Each one is a full interactive edition, not an excerpt, and more are in production. A COLLECTION THAT GROWS New works are added over time, and a membership includes them as they arrive. Nothing you unlock is taken away. MEMBERSHIP A subscription is required to open the works. Monthly or yearly, cancel any time in your App Store settings. Prices are shown in the app before you subscribe. SUPPORT Questions or feedback? support@stackbase.space Privacy: https://pages.stackbase.space/legal/privacy-policy Terms: https://pages.stackbase.space/legal/terms-of-service

Screenshots

CastLoop4 screens
Amber4 screens

Verdict

The call

The clearest difference is ads: Amber at none against CastLoop's shown. CastLoop's advantage is update cadence (weekly vs fortnightly). On price, 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

Both are free to download. CastLoop sells 10 in-app purchases, starting at $14.99 per 7 days and Amber sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CastLoop ships an update weekly, Amber fortnightly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
CastLoop versus Amber: the parameters behind the verdict, then further details
ParameterCastLoopAmber
PriceFreeFree
Rating4.0 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyWeekly — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS16.416.4
Further details — not scored
Size186 MB339 MB
Age rating12+12+
DeveloperX OriginalMetin Ata YETER

In-app purchases

10 purchases

CastLoop

Subscriptions2
  • CastLoop Plus Weekly Subscription$14.997 Days
  • CastLoop Plus Annually Subscription$149.991 Year
One-time8
  • Diamond Pack 1$0.99
  • Limited Deal$0.99
  • Unlock Full Story$2.99
Show 5 more
  • Diamond Pack 2$2.99
  • Diamond Pack 3$5.99
  • Diamond Pack 4$9.99
  • Diamond Pack 5$19.99
  • Diamond Pack 6$69.99
2 purchases

Amber

Subscriptions2
  • Monthly3 Days trial$14.991 Month
  • Yearly3 Days trial$89.991 Year

Questions

Is CastLoop free?
CastLoop is free to download, with in-app purchases available.
Is Amber free?
Amber is free to download, with in-app purchases available.
Do CastLoop or Amber have ads?
CastLoop shows ads; Amber does not.
Which is updated more often, CastLoop or Amber?
CastLoop ships an update weekly, and Amber fortnightly. Most recently, CastLoop was updated on November 6, 2026 and Amber on October 31, 2026.

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