Hanafuda・Koi Koi

慧 姚 · iOS

Hanafuda・Koi Koi

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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.

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03

Separate demand from paid growth

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Review the market context

02 / Storefront & product

Where the click lands.

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

Screenshots

Hanafuda・Koi Koi screenshot 1Hanafuda・Koi Koi screenshot 2Hanafuda・Koi Koi screenshot 3Hanafuda・Koi Koi screenshot 4Hanafuda・Koi Koi screenshot 5Hanafuda・Koi Koi screenshot 6Hanafuda・Koi Koi screenshot 7Hanafuda・Koi Koi screenshot 8

03 / Market context

The business behind the app.

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

How Much Does Hanafuda・Koi Koi Make?

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

Platform Performance

🍎iOS
Revenue
$1.0K
Downloads
1.0K
Rating
4.6 (556)

Rating Distribution

4.6
★★★★★
556 reviews
5
3%
4
2%
3
5%
2
17%
1
74%

Top Countries

🇯🇵 JP🇹🇼 TW🇺🇸 US
Reviews (3)
★★★★★Derpertons9/14/2023
Useful for learning how to play koi-koi

Wish it was online or two player as it has been noted in other reviews, but also finally feel like I’m picking up how to play koi-koi after using other apps and reading a book to describe gameplay. I really enjoy how the app separates out your captures as you go along and highlights what yaku is possible and what yaku you are close to attaining. Like other reviewers have said, I wish the koi-koi decision screen was moved slightly out of the way when trying to decide if you can score again before choosing to koi-koi or not! I know this app is older but I think there’s a lot of use here still to be gotten out of this.

★★★★★MadMan1532/20/2021
Good game

I played this game a year ago but I stopped playing it because the ads were getting annoying but when I came back to the app I found the remove ads feature but I also noticed the music wasn’t working I tried checking to see if my device wasn’t muted I am muted my device and still heard no music but still the game was good OK never mind might BGM was off

★★☆☆☆Closet0taku10/20/2020
I wanted a hanefuda game...

... not a dexterity puzzle. It’s a small screen interface, yet the designers insisted on forcing you to swipe the selected card onto its mate. The interface is so sensitive, though, that failing to put a card precisely onto one mate when you have a selection of two often causes the card you don’t want to get matched. Another gross shortcoming is the dialogue box that pops up when you must decide to call “koi koi” or stop. It completely obscures the game board and locks out examining cards to determine the game state. It’s another example of flawed design built into the app. Aside from these two features, it’s an acceptable opponent when played on “hard” setting.

Version History (13)
1.6.23/28/2025
1.6.13/17/2025
1.63/4/2025
1.57/7/2021
1.4.412/22/2020
1.4.310/2/2020
1.48/30/2020
1.3.27/18/2020
1.2.13/26/2019
1.0.62/10/2018
Available In (115 Countries)
🇺🇸 United States🇦🇺 Australia🇨🇦 Canada🇨🇳 China🇫🇷 France🇩🇪 Germany🇬🇧 United Kingdom🇮🇹 Italy🇯🇵 Japan🇰🇷 South Korea🇷🇺 Russia🇩🇿 DZ🇦🇴 AO🇦🇷 Argentina🇦🇹 Austria🇦🇿 AZ🇧🇧 BB🇧🇾 BY🇧🇪 Belgium🇧🇲 BM🇧🇷 Brazil🇧🇬 Bulgaria🇨🇱 Chile🇨🇴 Colombia🇨🇷 CR🇭🇷 Croatia🇨🇿 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🇲🇽 Mexico🇳🇱 Netherlands🇳🇿 New Zealand🇳🇬 Nigeria🇳🇴 Norway🇴🇲 OM🇵🇰 Pakistan🇵🇦 PA🇵🇪 Peru🇵🇭 Philippines🇵🇱 Poland🇵🇹 Portugal🇶🇦 QA🇷🇴 Romania🇸🇦 Saudi Arabia🇸🇬 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🇧🇭 BH🇨🇾 CY🇲🇹 MT🇷🇸 RS🇧🇯 BJ🇧🇫 BF🇨🇲 CM🇨🇬 CG🇨🇮 CI🇯🇴 JO🇱🇦 LA🇲🇱 ML🇸🇳 SN🇹🇿 TZ🇺🇬 UG🇿🇲 ZM🇿🇼 ZW
Supported Languages (7)
EnglishFrenchGermanJapaneseKoreanChineseSpanish
App Details

Koi-Koi (Japanese: こいこい) is a popular card game in Japan played with Hanafuda cards which is one of ways to play Hanafuda(Japanese playing cards) wit...

iOS App ID
1339558217
Content Rating
4+
Min OS
13.0
Size
133.8 MB
In-App Purchases
Yes
Publisher
慧 姚
Ch

In-App Purchases (1)

NamePriceType
Remove Ads$3.99One-time