Comparison

Zerko vs Polygon Mayhem

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

Head to head
About

Zerko

A relaxing puzzle game where you strategically place blocks to make all numbers on the board equal zero. Enjoy a no-pressure experience with calming audio and no in-app purchases or ads.

Highlights
  • Zero-sum number puzzles
  • Strategic block placement
  • Relaxing gameplay
  • No time pressure
  • No in-app purchases
  • No ads
Features
Currently charting
Read full description

Some call it reverse sudoku, while others call it a nullification game, but it's Zerko - a puzzle game filled with shapes, numbers, and a straightforward goal: make every number zero. To achieve this, you need to strategically place blocks of various shapes and values so that the numbers on the board effectively "remove up" to zero. Like all my games, this one too is about relaxation... Just chill. There are no points, no time pressure, no data collection, no in-app purchases, no ads, no nonsense ;) My only hope is that you'll enjoy it and that I'll be able to add new content and levels for you in the future. Relaxing audio by: Marek Koszczyński

About

Polygon Mayhem

Engage your mind with a unique puzzle game that uses geometric shapes to create intricate challenges. Solve spatial puzzles by strategically placing, rotating, and unfolding shapes to fit within a frame. This game offers a mentally stimulating and satisfying experience for puzzle enthusiasts.

Highlights
  • Intricate spatial puzzle levels
  • Geometric shape manipulation
  • Logic and creativity challenges
  • Out-of-the-box thinking
  • Mentally stimulating gameplay
Features
Read full description

Polygon Mayhem is a highly innovative and intellectually engaging puzzle game that challenges players with a wide variety of intricate levels — some of which are true brain teasers. At the heart of the gameplay lies a clever mechanic: solving spatial puzzles using simple geometric shapes like squares and triangles. Players must strategically place, rotate, and unfold (flip) parts of these shapes to fit perfectly within the puzzle frame. This elegant combination of geometry, logic, and creativity results in a unique gameplay experience that encourages out-of-the-box thinking and spatial reasoning. Whether you're solving a quick level or tackling a complex shape arrangement, Polygon Mayhem delivers a deeply satisfying puzzle-solving experience that’s both fun and mentally stimulating.

Screenshots

Zerko4 screens
Polygon Mayhem4 screens

Verdict

The call

The clearest difference is price: Polygon Mayhem at Free against Zerko's $2.99. Polygon Mayhem also leads on update cadence (every 9 days vs every 3 weeks). Zerko's advantage is review sentiment (93% vs 50%) and in-app purchases (none vs 8). On rating, ratings volume, 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

Polygon Mayhem is free to download; Zerko costs $2.99 up front. Polygon Mayhem sells 8 one-off in-app purchases. Zerko asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Zerko against 5.0 for Polygon Mayhem. Both are backed by a comparable volume of ratings — 14 and 10 respectively. Written reviews are what separate them: 93% of Zerko's written reviews are positive against 50% of Polygon Mayhem's.

UpkeepUpdate frequency

Zerko ships an update every 3 weeks, Polygon Mayhem every 9 days. The most recent releases landed on September 30, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 5 level
Zerko versus Polygon Mayhem: the parameters behind the verdict, then further details
ParameterZerkoPolygon Mayhem
Price$2.99Free — better
Rating4.9 (14 ratings)5.0 (10 ratings) — better
Positive reviews93.3% of reviews — better50.0% of reviews
Number of ratings14 — better10
Update frequencyEvery 3 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#170 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size100 MB161 MB
Age rating4+4+
DeveloperMaciej Targoniezra kohavi

Customer experience

Zerko

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive93.3%
Neutral6.7%
Negative0.0%

Polygon Mayhem

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Zerko

No in-app purchases

8 purchases

Polygon Mayhem

One-time8
  • Gold Coins (1000)$0.99
  • Gems (100)$0.99
  • Gold Coins (5000)$3.99
Show 5 more
  • Unlock Level 7 & 8!$3.99
  • Gems (500)$3.99
  • Gems (1000)$7.99
  • Gold Coins (12000)$7.99
  • Unlock All Levels Forever!$12.99

Questions

Is Zerko free?
Zerko costs $2.99, with no in-app purchases.
Is Polygon Mayhem free?
Polygon Mayhem is free to download, with in-app purchases available.
Which has better reviews, Zerko or Polygon Mayhem?
Polygon Mayhem is rated higher. Zerko averages 4.9 out of 5 from 14 ratings, while Polygon Mayhem averages 5.0 from 10 ratings.
Do Zerko or Polygon Mayhem have ads?
Neither Zerko nor Polygon Mayhem shows ads.
Which is updated more often, Zerko or Polygon Mayhem?
Zerko ships an update every 3 weeks, and Polygon Mayhem every 9 days. Most recently, Zerko was updated on September 30, 2026 and Polygon Mayhem on September 22, 2026.

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