Comparison

Shelf Sort vs Stack Cats

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

Head to head
About

Shelf Sort

Features
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Tidy shelves, calm mind. Shelf Sort is the coziest sorting puzzle on your phone. Tap goods to move them between shelves, line up 3 identical items, and watch them pop! Clear every shelf to win. Simple to learn, deeply relaxing, impossible to put down — and there's no timer rushing you. HOW TO PLAY • Tap an item to pick it up, tap a shelf to place it. • Match 3 identical goods on one shelf to clear them. • Clear all the shelves to complete the level! • Watch your free space — when the shelves fill up, you're stuck! WHY YOU'LL LOVE IT • Relaxing & satisfying: cozy themes, soft pops, gentle sounds • Easy one-finger controls — play with one hand, anywhere • No time limit, no pressure — think at your own pace • 100% offline — no wifi needed, perfect for travel • 1000 hand-tuned levels, from gentle to brain-teasing • 6 cozy worlds to explore: Pantry, Toy Box, Garden, Tide Pool, Workshop & Apothecary • Collect every item as you unlock new worlds • Daily Challenge & streaks — a fresh puzzle every day • Endless mode and a global leaderboard for high-score chasers • Helpful boosters when you're stuck: Undo, Shuffle, Extra Tray • Free to play, no ads interrupting your flow A NEW KIND OF SORTING GAME If you enjoy water sort, ball sort or goods sorting games, Shelf Sort gives you the same satisfying matching feeling with a fresh twist: limited shelf space! Every move matters. Plan ahead, keep a slot free, and clear the board with style. RELAX AND ORGANIZE There's something magical about putting things in order. Jam jars, honey pots, toys, garden blooms, seashells — sort them all into tidy triples and feel the stress melt away. Shelf Sort is your daily dose of calm: a brain game, a puzzle game and a stress-relief game in one. Sort the goods. Match the triples. Tidy every shelf. Download free and start organizing!

About

Stack Cats

Features
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Every cat has a personality. Find the perfect stack. Cat Stack Club is a cozy cat-stacking puzzle. It looks like a simple "sort the same color together" game — but after a few levels you realize color is only the beginning. Each cat has its own temper and its own rules about who it will sit next to. 8 CAT PERSONALITIES · Chubby Cat — too heavy, only fits at the very bottom · Cat King — wears a crown, refuses to let anyone sit on its head · Sleepy Cat — fast asleep, move another cat to wake it up · Best Friends — linked by hearts, they move together as a pair · Shy Cat — won't be the first one into an empty bed · Likes & Fears — some cats love a color, some are scared of one, and they can't sit next to each other Play at your own pace. No move timers, no pressure for three stars. If you get stuck, hints and a temporary spare bed are there for you. 280 LEVELS ACROSS 7 CHAPTERS Living room → kitchen → garden → bedroom → rooftop. Each chapter unlocks new scenes and new cats, and clearing levels drops furniture so you can decorate your own cat room. 40 CATS TO COLLECT From orange tabbies and tuxedos to ragdolls, Bengals and Sphynx. Every cat is a hand-drawn chibi illustration. Rarity only affects your collection — never the difficulty. COMFY SOUND & FEEL Lazy, relaxing original music, a different cute reaction sound for each cat, and springy squash-and-stretch landing animations. CLEAN AND SIMPLE · Play offline, no login required · Full-screen, distraction-free · 7 languages: 简体中文 / English / 日本語 / 한국어 / Français / Español / Русский · No forced ads — remove them in one purchase Every cat has a personality. Find the perfect stack.

Screenshots

Shelf Sort4 screens
Stack Cats4 screens

Verdict

The call

The clearest difference is in-app purchases: Shelf Sort at none against Stack Cats's 4. Shelf Sort also leads on iOS requirement (15.0 vs 17.6). Stack Cats's advantage is update cadence (every 4 days vs every 3 weeks). 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. Stack Cats sells 4 one-off in-app purchases. Shelf Sort asks for nothing beyond the download.

UpkeepUpdate frequency

Shelf Sort ships an update every 3 weeks, Stack Cats every 4 days. The most recent releases landed on October 16, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 3 level
Shelf Sort versus Stack Cats: the parameters behind the verdict, then further details
ParameterShelf SortStack Cats
PriceFreeFree
Update frequencyEvery 3 weeksEvery 4 days — better
AdsYesYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size149 MB42 MB
Age rating12+4+
DeveloperTADAS MILIESKA桃花 秦

In-app purchases

None

Shelf Sort

No in-app purchases

4 purchases

Stack Cats

One-time4
  • Coins Pack$0.99
  • Remove Ads$2.99
  • Hint Pack$2.99
Show 1 more
  • Bed Skin Pack$3.99

Questions

Is Shelf Sort free?
Shelf Sort is free to download, with no in-app purchases.
Is Stack Cats free?
Stack Cats is free to download, with in-app purchases available.
Do Shelf Sort or Stack Cats have ads?
Both Shelf Sort and Stack Cats show ads.
Which is updated more often, Shelf Sort or Stack Cats?
Shelf Sort ships an update every 3 weeks, and Stack Cats every 4 days. Most recently, Shelf Sort was updated on October 16, 2026 and Stack Cats on October 29, 2026.

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