Comparison

Shape Stackers vs Knock It Down!

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

Head to head
About

Shape Stackers

A physics-based tower-building game where players stack colorful shapes to reach a goal line. Navigate challenging levels with unpredictable pieces and enjoy both single-player and two-player modes.

Highlights
  • Physics-based tower building
  • 100 single-player levels
  • Challenging block types (large, cursed, ghost)
  • Two-player competitive mode
  • Simple to learn, tricky to master gameplay
Features
Read full description

**Shape Stackers** is a physics-based tower-building game where every piece matters. Stack colorful shapes into a growing tower, balance awkward blocks, and try to reach the goal line without sending everything tumbling. Play through 100 single-player levels with rising height goals, changing backgrounds, and unpredictable pieces. Some blocks are larger and harder to balance, some cursed blocks are tiny, and ghost blocks vanish when they touch another block, taking that block with them. Want a challenge with a friend? Switch to 2-player mode and take turns stacking pieces. The player who drops the block that knocks the tower over loses. Simple to learn, tricky to master, and full of wobbly “just one more block” moments.

About

Knock It Down!

A physics-based shooting game where you use a cannon to topple stacks of objects. Aim carefully to trigger chain reactions and clear levels with limited ammo. Offers hundreds of progressively challenging stages.

Highlights
  • One-touch aim and shoot
  • Realistic physics destruction
  • Multiple object types
  • Limited ball count per level
  • Hundreds of challenging levels
Features
Read full description

Knock It Down is a physics-based shooting game where you fire balls from a cannon to knock stacks of cans, crates, and objects off their platforms before your ammo runs out. How it works: Aim your cannon, fire, and use physics to your advantage, hit the right block to trigger chain reactions and clear the platform in as few shots as possible. Key Features: - Simple one-touch aim and shoot mechanic - Realistic physics destruction — every shot feels different - Multiple object types including cans, crates, and reinforced blocks - Limited ball count per level adds strategic depth - Progressively challenging formations across hundreds of levels Ideal for players who enjoy physics shooters, ball launcher games, and satisfying destruction gameplay.

Screenshots

Shape Stackers4 screens
Knock It Down!4 screens

Verdict

The call

The clearest difference is in-app purchases: Shape Stackers at none against Knock It Down!'s 7. Shape Stackers also leads on ads (none vs shown) and rating (5.0 vs 4.7). Knock It Down!'s advantage is ratings volume (812 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence 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. Knock It Down! sells 7 one-off in-app purchases. Shape Stackers asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Shape Stackers holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Knock It Down! has 812 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Shape Stackers ships an update every 4 days, Knock It Down! weekly. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 4 level
Shape Stackers versus Knock It Down!: the parameters behind the verdict, then further details
ParameterShape StackersKnock It Down!
PriceFreeFree
Rating5.0 (1 ratings) — better4.7 (812 ratings)
Positive reviews—57.1% of reviews
Number of ratings1812 — better
Update frequencyEvery 4 days — betterWeekly
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterAd-supported
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size16 MB212 MB
Age rating4+4+
DeveloperMiles CrumrineZehra Koc

Customer experience

Shape Stackers

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Knock It Down!

All ratings812 ratings
Positive93.0%
Neutral4.6%
Negative2.5%
Written reviews14 reviews
Positive57.1%
Neutral7.1%
Negative35.7%

In-app purchases

None

Shape Stackers

No in-app purchases

7 purchases

Knock It Down!

One-time7
  • Mini Coin Package$1.99
  • Small Coin Package$7.99
  • No Ads$9.99
Show 4 more
  • Medium Coin Package$14.99
  • Big Coin Package$29.99
  • Super Coin Package$54.99
  • Mega Coin Package$99.99

Questions

Is Shape Stackers free?
Shape Stackers is free to download, with no in-app purchases.
Is Knock It Down! free?
Knock It Down! is free to download, with in-app purchases available.
Which has better reviews, Shape Stackers or Knock It Down!?
Shape Stackers is rated higher. Shape Stackers averages 5.0 out of 5 from 1 ratings, while Knock It Down! averages 4.7 from 812 ratings.
Do Shape Stackers or Knock It Down! have ads?
Knock It Down! shows ads; Shape Stackers does not.
Which is updated more often, Shape Stackers or Knock It Down!?
Shape Stackers ships an update every 4 days, and Knock It Down! weekly. Most recently, Shape Stackers was updated on October 1, 2026 and Knock It Down! on October 14, 2026.

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