EntertainmentHealth & Fitness

RYUKIN

Name: RYUKIN
Rating: 4.89 (1650 reviews)
Author: Masataka Hakozaki

Gracefully Fluttering Goldfish

Masataka Hakozaki · released 12 Mar 2024 · Open in App Store ↗

Revenue 30d $1,000 estimate, worldwide

Downloads 30d 1,000 estimate, worldwide

Rating 4.89 1,650 reviews

Revenue % by product type

Japan 87%


One-time purchase	167	$0.77 – $1.59
One-time purchase	167	$0.77 – $1.59
One-time purchase	166	$0.77 – $1.59
One-time purchase	165	$0.77 – $1.59
One-time purchase	164	$1.63 – $3.18
One-time purchase	163	$1.63 – $3.18
One-time purchase	162	$1.63 – $3.18
One-time purchase	160	$1.63 – $3.18
One-time purchase	159	$1.63 – $3.18
One-time purchase	155	$1.63 – $3.18

	Revenue %	Top products
Japan
United States
Taiwan
South Korea
China
Canada
United Kingdom
Russia
Thailand
Australia

Description

～ 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