Comparison

Stackle Topics vs Book Sort

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

Head to head
About

Stackle Topics

Features
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Stackle Topics is a stacking based topic sort game that combines mahjong-style tile picking with smart word and item classification. On each level, your screen features stacked layers of square tiles showing various icons, words, and illustrations. Your goal is to drag matching items onto their designated category slots—such as space, family, pasta, or lighting—to clear the board. The challenge comes from managing your limited move counter and unearthing covered tiles. You must plan your sequence carefully—selecting items in the wrong order can trap essential pieces beneath lower layers, locking your progress. As you advance, the levels feature broader category sets, deeper tile stacks, and intricate board layouts that require clever association skills. It is a relaxing yet stimulating visual workout that sharpens your mind at your own pace.

About

Book Sort

Organize colorful books on a shelf by sorting them into their correct color groups. Strategically plan your moves to uncover hidden books and complete each level within a limited number of turns. Utilize helpful boosters like Undo and Joker to overcome challenges.

Highlights
  • Color-based book sorting
  • Hidden books and strategic moves
  • Limited moves per level
  • Crown book starting mechanic
  • Undo and Joker boosters
  • Increasingly challenging levels
  • Relaxing puzzle gameplay
Features
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Book Sort: Shelf Puzzle A messy shelf. Colorful books. And a limited number of moves. Sort the books by color and place them on the shelf. Only the top book in each column is visible, so you need to carefully plan your moves to uncover the hidden books underneath. Start each sequence with the crown book and continue until every book is in its place. Use the boosters when you need them: Undo lets you go back to a previous move, while Joker is a wild card that can be placed anywhere and can be followed by any color. Features: Color-based book sorting Hidden books and strategic moves Limited number of moves in each level Crown books to start each sequence Undo and Joker boosters Increasingly challenging levels Relaxing puzzle gameplay Plan every move, use your boosters wisely, and sort all the books before you run out of moves in Book Sort: Shelf Puzzle. Privacy: https://igorchetr.us/privacy/ Terms: https://igorchetr.us/terms/

Screenshots

Stackle Topics4 screens
Book Sort4 screens

Verdict

The call

The clearest difference is in-app purchases: Stackle Topics at none against Book Sort's 1. Book Sort's advantage is iOS requirement (15.0 vs 17.6). On price, ads 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. Book Sort sells 1 one-off in-app purchase. Stackle Topics asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Stackle Topics versus Book Sort: the parameters behind the verdict, then further details
ParameterStackle TopicsBook Sort
PriceFreeFree
Rating—4.9 (10 ratings) — better
Number of ratings—10 — better
Update frequencyEvery 5 weeks—
AdsYesYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615.0 — better
Further details — not scored
Size77 MB178 MB
Age rating12+4+
DeveloperMezzeIgor Chetrus

In-app purchases

None

Stackle Topics

No in-app purchases

1 purchases

Book Sort

One-time1
  • Remove ads$9.99

Questions

Is Stackle Topics free?
Stackle Topics is free to download, with no in-app purchases.
Is Book Sort free?
Book Sort is free to download, with in-app purchases available.
Do Stackle Topics or Book Sort have ads?
Both Stackle Topics and Book Sort show ads.

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