Zerko

Maciej Targoni · iOS

Zerko

Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.

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01 / Creative research

Turn the unknowns into a research plan.

01

Check the acquisition promise

Read the store headline, screenshots and description. What problem is the app promising to solve?

Study the storefront
02

Look for ad evidence

Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.

Browse observed advertisers
03

Separate demand from paid growth

Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.

Review the market context

02 / Storefront & product

Where the click lands.

Study the product story and store experience behind the acquisition funnel.

Screenshots

Zerko screenshot 1Zerko screenshot 2Zerko screenshot 3Zerko screenshot 4Zerko screenshot 5Zerko screenshot 6Zerko screenshot 7Zerko screenshot 8

03 / Market context

The business behind the app.

Keep revenue, downloads and store rankings separate from advertising performance.

How Much Does Zerko Make?

Monthly Revenue
$1.0K
Annualized estimate
$12.0K
Per Download
$1.00

Platform Performance

🍎iOS
Revenue
$1.0K
Downloads
1.0K
Rating
4.9 (14)

Rating Distribution

4.9
★★★★★
14 reviews
5
0%
4
0%
3
0%
2
14%
1
86%

Top Countries

🇺🇸 US🇬🇧 GB🇫🇷 FR
Reviews (3)
★★★★★DemoRaze1/8/2025
Developer Rating 10/10

Why are there so few developers who understand puzzle gaming like Maciej Targoni? And why aren’t ALL of his games downloaded by millions of people? These are sincere questions. I just don’t get it. Consider: Classic crossword puzzles are among the most popular, longest lasting games in the world. They don’t have point systems or timers or IAPs. There are no boosters or pay-to-win nonsense. They simply encourage you to challenge yourself and enjoy the process of figuring out solutions at your own pace. This is the philosophy behind the games of Maciej Targoni. He makes clever, minimalist games that focus on the essence of puzzle gaming: the joy of discovering solutions. Thank you Mr. Margoni. We need more developers like you.

★★★★★5/17/2024
More levels please

I have purchased nearly every game by this developer and enjoy the approached of solving a puzzle for the fun of it. I didn’t buy this one for quite sometime thinking it would be like sudoku and continuously rechecking the numbers to see what is missing, it is not. It is delightful. How about the same concept but with words? That would be enjoyable too.

★★★★★3/31/2024
Is it just me or is 33/50 broken?

A quick puzzle game that feels tactile and responsive - except I'm almost sure 33 is missing a piece. It'd be good if there was a way to skip a level or two ahead, too.

Version History (2)
1.03/26/2024
0.913/5/2024
Available In (114 Countries)
🇺🇸 United States🇦🇺 Australia🇨🇦 Canada🇫🇷 France🇩🇪 Germany🇬🇧 United Kingdom🇮🇹 Italy🇯🇵 Japan🇰🇷 South Korea🇷🇺 Russia🇩🇿 DZ🇦🇴 AO🇦🇷 Argentina🇦🇹 Austria🇦🇿 AZ🇧🇭 BH🇧🇧 BB🇧🇾 BY🇧🇪 Belgium🇧🇲 BM🇧🇷 Brazil🇧🇬 Bulgaria🇨🇱 Chile🇨🇴 Colombia🇨🇷 CR🇭🇷 Croatia🇨🇾 CY🇨🇿 Czech Republic🇩🇰 Denmark🇩🇴 DO🇪🇨 EC🇪🇬 Egypt🇸🇻 SV🇫🇮 Finland🇬🇭 GH🇬🇷 Greece🇬🇹 GT🇭🇰 Hong Kong🇭🇺 Hungary🇮🇳 India🇮🇩 Indonesia🇮🇪 Ireland🇮🇱 Israel🇰🇿 KZ🇰🇪 Kenya🇰🇼 KW🇱🇧 LB🇱🇹 Lithuania🇱🇺 LU🇲🇴 MO🇲🇬 MG🇲🇾 Malaysia🇲🇹 MT🇲🇽 Mexico🇳🇱 Netherlands🇳🇿 New Zealand🇳🇬 Nigeria🇳🇴 Norway🇴🇲 OM🇵🇰 Pakistan🇵🇦 PA🇵🇪 Peru🇵🇭 Philippines🇵🇱 Poland🇵🇹 Portugal🇶🇦 QA🇷🇴 Romania🇸🇦 Saudi Arabia🇷🇸 RS🇸🇬 Singapore🇸🇰 Slovakia🇸🇮 Slovenia🇿🇦 South Africa🇪🇸 Spain🇱🇰 LK🇸🇪 Sweden🇨🇭 Switzerland🇹🇼 Taiwan🇹🇭 Thailand🇹🇳 TN🇹🇷 Turkey🇺🇦 Ukraine🇦🇪 UAE🇺🇾 UY🇺🇿 UZ🇻🇪 VE🇻🇳 Vietnam🇧🇴 BO🇰🇭 KH🇪🇪 Estonia🇱🇻 Latvia🇳🇮 NI🇵🇾 PY🇦🇫 AF🇬🇪 GE🇮🇶 IQ🇱🇾 LY🇲🇦 MA🇲🇿 MZ🇲🇲 MM🇾🇪 YE🇧🇯 BJ🇧🇫 BF🇨🇲 CM🇨🇬 CG🇨🇮 CI🇯🇴 JO🇱🇦 LA🇲🇱 ML🇸🇳 SN🇹🇿 TZ🇺🇬 UG🇿🇲 ZM🇿🇼 ZW
Supported Languages (1)
English
App Details

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 straightforw...

iOS App ID
6470181559
Content Rating
4+
Min OS
12.0
Size
100.3 MB
Publisher
Maciej Targoni
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