Comparison

Whack Stack! vs Knock Away 3D

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

Head to head
About

Whack Stack!

A physics-based puzzle game where players aim a cannon to strategically knock down stacked structures. Master each level by finding weak points and triggering satisfying chain reactions for quick, engaging gameplay.

Highlights
  • Simple cannon aiming and shooting
  • Satisfying physics-based destruction
  • Strategic puzzle-solving
  • Chain reactions and falling blocks
  • Varied structures to demolish
  • Short, satisfying levels
Features
Read full description

Welcome to Whack Stack! A colorful 3D physics puzzle game where stacked materials, tall towers and unstable buildings are waiting to be knocked down. Aim your cannon, fire the shot, and watch the structure collapse piece by piece. Smash every stack, clear the site, and finish each level with one perfect cannonball. A SITE FULL OF STACKS TO SMASH Stone blocks, wooden boards, heavy crates, steel barrels and fragile parts are stacked high and ready to fall. Every scene is a new build site: stone walls, steel frames and heavy material stacks, all built to test your aim. Load the cannon, pick your angle, and blast the whole thing down in one satisfying wave of destruction. SIMPLE MECHANIC, CLEVER PHYSICS PUZZLE The mechanic is simple: aim, shoot, smash. But every stack is a real physics puzzle. Some stone blocks hold the whole structure together. Some crates and barrels only shift. One fragile piece can break, trigger a chain reaction and drop the whole stack. Shoot without aiming and the structure just shakes. Find the weak point, control the angle and the power, fire the perfect shot and let the destruction do the rest. WHY YOU'LL LOVE WHACK STACK! • Simple cannon gameplay: aim, shoot and smash the stack • Satisfying 3D physics destruction, with every block, board and piece falling in real time • Colorful destruction scenes: stacked towers, stone walls, bridges and tricky structures • Smash stone blocks, wooden boards, crates, barrels and fragile parts • Destructive chain reactions that knock a whole building down in one blast • Clever puzzle challenge: read the scene, find the weak point, fire the perfect cannonball • Fun, chaotic cannon physics with new levels and rewarding destruction • Short, satisfying levels, perfect for a quick smash session • Easy to play and learn, tricky to master EVERY SHOT COUNTS Aiming is a skill. Control the angle, control the power, trigger the reaction. Hit one fragile block and the barrel stack pops. Knock one board down and the crates follow. Clear every object, break every obstacle, and the stage is yours. Each perfect shot rewards you with new cannons, new stone structures and bigger destruction. READY, AIM, SMASH! The cannon is ready. The stack is standing tall. Blocks are stacked, balanced and waiting to fall. Aim the cannon, hit the weak point, smash the structure and clear the stage. Can you smash every stack with the perfect cannon shot? Download Whack Stack! and start your first destruction puzzle today.

About

Knock Away 3D

Engage in a satisfying demolition experience by aiming and firing at stacked targets. Progress through increasingly challenging levels, from toppling wooden crates to smashing sturdy iron barrels, all while managing limited shots. Enjoy a relaxing and rewarding gameplay loop with no time pressure.

Highlights
  • Physics-based target destruction
  • Limited shot challenges
  • Variety of target materials
  • Progressive level difficulty
  • Chain reaction mechanics
  • Relaxing, no-time-limit gameplay
Features
Read full description

Blast & Clear – Shoot, Smash, and Unwind! If you're looking for a stress‑melting shooting game that still gives your brain a little workout, this is it. Grab your cannon, take aim, and fire away at a platform full of targets. No complicated rules, no endless tutorials – just pure, satisfying demolition. Each level gives you a limited number of shots, so every trigger pull counts. Clear the platform, and you move on to the next challenge. Simple, punchy, and incredibly relaxing. How It Works You control a cannon at the bottom of the screen. Above you, a platform is stacked with various objects – wooden crates, ceramic pots, iron barrels, and more. Your job is to knock every single one of them off the platform using your cannonballs. Aim carefully, consider the angle, and fire! When a target gets hit, it tumbles and falls to the ground. Once the platform is completely empty of targets, you've cleared the level. No time limits, no pressure – just you, your cannon, and a pile of things waiting to be smashed. From Wood to Iron – The Challenge Grows At first, you'll face lightweight wooden crates that are easy to topple. A single well‑placed shot can send them flying. But as you progress, things get tougher. Ceramic pots are heavier and take more hits to break. Then come iron barrels – they're sturdy, stubborn, and require precise, repeated strikes. And it's not just the materials that change – the targets start stacking higher and higher. Towers of crates, piles of pots, and fortified stacks of barrels make each level a fresh puzzle of angles and force. Weight & Stacking – A Real Test of Aim The added weight changes everything. A heavy barrel on top of a crate might crush it if you hit the right spot – or it might stay put if you don't. You'll need to think about which target to hit first, which angle sends the most objects tumbling, and how to make the most of your limited ammo. Sometimes a single shot in the right place can trigger a chain reaction, toppling half the platform in one glorious explosion. Other times, you'll need to chip away piece by piece. Pure Satisfaction, No Rush There's no timer breathing down your neck. You can take all the time you need to line up your shot, study the stack, and plan your attack. Each successful hit feels incredibly rewarding – the satisfying crash of breaking objects, the clatter of debris, and the gradual clearing of the platform. It's the kind of game you can play for five minutes or an hour, and it always leaves you feeling relaxed and accomplished. Ready to Become a Master Blaster? With dozens of levels, each more challenging than the last, you'll never run out of things to smash. Progress through wooden villages, ceramic workshops, and iron fortresses. Upgrade your cannon, unlock new ammo types, and prove your aiming skills. Can you clear every platform with the fewest shots possible? Jump in, take aim, and start blasting your stress away – one target at a time!

Screenshots

Whack Stack!4 screens
Knock Away 3D4 screens

Verdict

The call

Whack Stack! and Knock Away 3D both sit at 4.8 stars, but that hides the real split: 100% of Knock Away 3D's written reviews are positive against 88% of Whack Stack!'s. On price, rating, ratings volume and update cadence 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. Whack Stack! sells 10 one-off in-app purchases and Knock Away 3D sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Whack Stack! against 4.7 for Knock Away 3D. Both are backed by a comparable volume of ratings — 860 and 870 respectively. Written reviews are what separate them: 88% of Whack Stack!'s written reviews are positive against 100% of Knock Away 3D's.

UpkeepUpdate frequency

Whack Stack! ships an update every 3 weeks, Knock Away 3D every 2 weeks. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.

Scorecard1 real difference · 9 level
Whack Stack! versus Knock Away 3D: the parameters behind the verdict, then further details
ParameterWhack Stack!Knock Away 3D
PriceFreeFree
Rating4.8 (860 ratings) — better4.7 (870 ratings)
Positive reviews88.2% of reviews100.0% of reviews — better
Number of ratings860870 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size332 MB204 MB
Age rating4+4+
DeveloperSupercent, Inc.Solid Games

Customer experience

Whack Stack!

All ratings860 ratings
Positive95.9%
Neutral2.4%
Negative1.6%
Written reviews34 reviews
Positive88.2%
Neutral0.0%
Negative11.8%

Knock Away 3D

All ratings870 ratings
Positive94.9%
Neutral3.7%
Negative1.4%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Whack Stack!

One-time10
  • staterdeal_0.99$0.99
  • moneypack1_1.99$1.99
  • valuepack_1.99$1.99
Show 7 more
  • stepup1_1.99$1.99
  • stepup2_4.99$4.99
  • superdeal_7.99$7.99
  • moneypack2_7.99$7.99
  • noads_9.99$9.99
  • megapack_24.99$24.99
  • moneypack6_99.99$99.99
7 purchases

Knock Away 3D

One-time7
  • Small Coin Pack$1.99
  • Medium Coin Pack$7.99
  • Remove Ads$9.99
Show 4 more
  • Large Coin Pack$14.99
  • Mega Coin Pack$29.99
  • Giant Coin Pack$54.99
  • Ultimate Coin Pack$99.99

Questions

Is Whack Stack! free?
Whack Stack! is free to download, with in-app purchases available.
Is Knock Away 3D free?
Knock Away 3D is free to download, with in-app purchases available.
Which has better reviews, Whack Stack! or Knock Away 3D?
Whack Stack! is rated higher. Whack Stack! averages 4.8 out of 5 from 860 ratings, while Knock Away 3D averages 4.7 from 870 ratings.
Do Whack Stack! or Knock Away 3D have ads?
Both Whack Stack! and Knock Away 3D show ads.
Which is updated more often, Whack Stack! or Knock Away 3D?
Whack Stack! ships an update every 3 weeks, and Knock Away 3D every 2 weeks. Most recently, Whack Stack! was updated on October 20, 2026 and Knock Away 3D on October 15, 2026.

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