RYUKIN

Name: RYUKIN
Price: 3.49 USD
Rating: 4.9 (52 reviews)
Author: Masataka Hakozaki

Gracefully Fluttering Goldfish

$3.49 · In‑App Purchases · Designed for iPad

52 Ratings
Ages

4+
Years
Category

Entertainment
Developer

Masataka Hakozaki
Language

EN
+ 14 More
Size

227.5
MB

～ Gracefully Fluttering Goldfish ～ Goldfish glide gracefully through crystal-clear water, their fins fluttering gently as they swim. Their charming gestures and soft, delicate fin movements have been carefully recreated. Enjoy the beauty of goldfish anytime, anywhere — without the need for water changes or feeding. App Highlights - Fish respond to your touch and follow your finger - Customize tank shape, background color, and floating objects - Soothing water sounds and clear, refreshing visuals - "Cat & Baby Mode" for safe play with kittens and toddlers - Sleep timer for relaxing bedtime use - Play your favorite music while watching the aquarium - Clock and date display - White and black goldfish included; colorful and themed fish available via in-app purchase Settings & Customization - Camera options (Free position / Follow fish / Auto-rotation) - Screen orientation - Tilt sensitivity - Sleep timer - UI size - Toggle water surface, bubbles, and other effects - Adjust brightness, saturation, contrast, and color tone - Quality settings (resolution and various effects) - Volume settings (water sounds, bubble sounds) - Clock & date options (font, position, size) Other Features - Fish, objects, and the water surface respond to touch and device tilt - Fish may whimsically swim toward your finger - Tap too much and the fish may faint! - Feed the fish - Adjust the size of fish and objects - Display up to six fish at once ‥∴ Bringing the Allure of Goldfish Closer ∴‥ This app was born from a childhood dream of recreating goldfish through programming. Fifteen years after the release of the original app *Wa Kingyo*, countless refinements have been made to capture the graceful and charming nature of these fish. From the gentle movement of their fins to the way they chase and munch on food, experience the beauty and warmth that goldfish bring. News and Support X: @m_hakozaki TikTok: @m_hakozaki Instagram: @masataka.hakozaki

Ratings & Reviews

4.9

out of 5

52 Ratings

gorgeous 😍😌😂😌❤️‍🩹😌
11/18/2024

Blue Pine
What a beautiful app - this will become my most used app- it has such beauty - I bought a beautifully rendered turquoise fish to keep my fragile white fish company, and fed them before coming to write this review. They’re swimming together in a deep blue niche, with a very real moon in an orange night moment - very real - it’s very peaceful, truly beautiful. I’m astonished and grateful. ***** ONE WISH - These fish are so very real, and their environment and water is so true-to-life, that I feel that they need more depth in their aquarium from front to back. They can swim side to side and up and down, but they have barely enough room front to back to turn around. I worry for them 🙏
gorgeous 😍😌😂😌❤️‍🩹😌
11/18/2024

Blue Pine

What a beautiful app - this will become my most used app- it has such beauty - I bought a beautifully rendered turquoise fish to keep my fragile white fish company, and fed them before coming to write this review. They’re swimming together in a deep blue niche, with a very real moon in an orange night moment - very real - it’s very peaceful, truly beautiful. I’m astonished and grateful. ***** ONE WISH - These fish are so very real, and their environment and water is so true-to-life, that I feel that they need more depth in their aquarium from front to back. They can swim side to side and up and down, but they have barely enough room front to back to turn around. I worry for them 🙏
Phenomenal Joy on my screen
06/09/2025

the Fish30
I started with this developer’s original app on my tiny iPod Touch ages ago. Though the art was stylized, the animation always captured the true goldfish wiggle perfectly. And still no one else has done it so well. I had missed having the beauty of fantails for so long, now I cast them to my TV and they are so relaxing and wholesome to have on in the background. Outstanding value for the price, I love that I (gladly) pay for only the fish I want. Regular updates and improvements, developer is a dedicated artist!
Phenomenal Joy on my screen
06/09/2025

the Fish30

I started with this developer’s original app on my tiny iPod Touch ages ago. Though the art was stylized, the animation always captured the true goldfish wiggle perfectly. And still no one else has done it so well. I had missed having the beauty of fantails for so long, now I cast them to my TV and they are so relaxing and wholesome to have on in the background. Outstanding value for the price, I love that I (gladly) pay for only the fish I want. Regular updates and improvements, developer is a dedicated artist!
Gorgeous and soothing
03/15/2024

Cbc26
I’ve been waiting for this app to release while following the developer on Twitter. It’s so lifelike and soothing to just tap the water and watch these lifelike creatures swim my way. Would love for the ability to customize colors more on the user end, but even if nothing more were ever added, this is well worth the money.
Gorgeous and soothing
03/15/2024

Cbc26

I’ve been waiting for this app to release while following the developer on Twitter. It’s so lifelike and soothing to just tap the water and watch these lifelike creatures swim my way. Would love for the ability to customize colors more on the user end, but even if nothing more were ever added, this is well worth the money.
Unbelievable Quality
10/28/2024

matts9905
I’ve been following the developer on twitter for some time now and was excited to see he turned his fish sim into an app!I’ve been looking for an app that would display a clock to put on my desk as I work, and was pleasantly surprised to see it included that function! It’s like it was made for me. I keep it on for hours as I work, and it acts a fun, soothing break when I mess with the back grounds and feed the fish.I love the fun holiday inclusions, and have already purchased some of the Halloween fish. I hope the dev continues to add fun new content in the future. I LOVE THIS APP THANK YOU
Unbelievable Quality
10/28/2024

matts9905

I’ve been following the developer on twitter for some time now and was excited to see he turned his fish sim into an app!I’ve been looking for an app that would display a clock to put on my desk as I work, and was pleasantly surprised to see it included that function! It’s like it was made for me. I keep it on for hours as I work, and it acts a fun, soothing break when I mess with the back grounds and feed the fish.I love the fun holiday inclusions, and have already purchased some of the Halloween fish. I hope the dev continues to add fun new content in the future. I LOVE THIS APP THANK YOU