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Best Koi Fish Breeding Apps & Games

208+ iOS apps & games curated and reviewed

4.5 avg rating
16 free apps & games
Updated May 2026

With an average user rating of 4.5★, the koi fish breeding category is one of the App Store's strongest. Browse all 208+ apps and games we track, sorted so the most loved ones surface first.

Top Picks for Koi Fish Breeding

Zen Koi Pro+#1

Zen Koi Pro+ by LandShark Games Pte. Ltd.

Ad-free koi breeding & relax
Editor's Choice
🎮 Games
4.8😊(4.5K ratings)
Free
Zen Koi Pro+ screenshot 1
Zen Koi Pro+ screenshot 2
Zen Koi Pro+ screenshot 3
Zen Koi Pro+ screenshot 4
Zen Koi Pro+ screenshot 5
Zen Koi Pro+ screenshot 6

Embark on a tranquil journey with a serene single-player game, collecting over 50 unique koi patterns in a relaxing, ad-free environment. Dive into the world of Zen Koi Pro for stress relief, completionist challenges, or casual family-friendly fun. Download now for an uninterrupted zen experience anytime, anywhere.

What We Love

  • 💤 Relaxing and calming experience
  • 🎨 Beautiful artwork and visuals
  • 🎶 Soothing music
  • 🕹️ Fun and engaging gameplay

Room to Improve

  • 🔁 Repetitive and can become boring over time
  • 🗂️ Lack of organization for koi collection
  • 🐉 Limited use for dragons after unlocking them
Zen Koi Classic#2

Zen Koi Classic by LandShark Games Pte. Ltd.

Relax, Breed & Collect Koi
Strong Contender
🎮 Games
4.7😊(2K ratings)
FreeAdsIn-App Purchases
Zen Koi Classic screenshot 1
Zen Koi Classic screenshot 2
Zen Koi Classic screenshot 3
Zen Koi Classic screenshot 4
Zen Koi Classic screenshot 5

Create and nurture a tranquil underwater world by breeding and growing beautiful and unique koi fish. Immerse yourself in the peaceful atmosphere and watch your koi gracefully swim in serene waters. Experience Zen Koi Classic now for a calming and rejuvenating escape.

What We Love

  • 🌊 Relaxing and calming gameplay
  • 🎨 Beautiful and intricate koi designs
  • 🐉 Enjoyment of breeding and evolving koi into dragons
  • 🕰️ Great way to pass time and de-stress

Room to Improve

  • 💰 Difficulty earning pearls without in-app purchases
  • 🔒 Limited number of koi/egg slots without spending pearls
  • 🐛 Occasional crashes and bugs after updates
Zen Koi 2#3

Zen Koi 2 by LandShark Games Pte. Ltd.

Ascend your Koi into a Dragon
Worth Considering
🎮 Games
4.6😊(343 ratings)
FreeAdsIn-App Purchases
Zen Koi 2 screenshot 1
Zen Koi 2 screenshot 2
Zen Koi 2 screenshot 3
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Embark on a serene journey of tranquility and creativity with this mobile app. Breed and nurture vibrant koi, witness their transformation into majestic dragons, and create personalized underwater zen gardens. Connect with friends, express your artistic side, and unwind from daily stress. Download now and start your ascent!

What We Love

  • 🌊 Relaxing and calming game
  • 🐉 Ability to play as dragons
  • 🎨 Beautiful graphics and animations
  • 🎶 Soothing music

Room to Improve

  • 🕰️ Slow progression and high costs for new koi slots
  • 🐟 Repetitive prey-catching gameplay
  • 🔌 Connectivity issues and loading problems

More Koi Fish Breeding apps to explore

4
Happy Fish +
Happy Fish +
Happy Fish +
Leisure fish farming
Free

"Experience the most popular fish farming game with over 3000 unique fish to collect, each with special personalities. Enjoy easy and relaxing gameplay by feeding and interacting with your fish with a single touch, all set against beautiful and customizable backgrounds."

🎮 Games
(1K)
5
Fish Tycoon
Fish Tycoon
Fish Tycoon
Unlock the Magic Fish of Isola
$0.99

Create your own virtual aquarium and breed over 400 species of fish in a genetic puzzle challenge to uncover the 7 Magic Fish of Isola. Care for your fish, sell creations, and customize tanks in real time. Dive into this award-winning simulation game for just $0.99 for a limited time!

🎮 Games
(1.8K)
6
Fish & Trip
Fish & Trip
Fish & Trip
Lead your school of fish!
Free

Discover a diverse range of recipes for preparing fish dishes from around the world, complete with step-by-step instructions and video tutorials. Whether you're a seafood enthusiast or a culinary adventurer, embark on a flavorful journey today!

🎮 Games
(8.5K)
7
Fish Tycoon Lite
Fish Tycoon Lite
Fish Tycoon Lite
Unlock the Magic Fish of Isola
Free

Embark on a virtual fish breeding journey in a persistent world to unlock the 7 Magic Fish of Isola. Care for over 400 species, customize aquariums, and discover breeding combinations while experiencing real-time gameplay. Upgrade for unlimited play and additional features.

🎮 Games
(1.2K)
8
Fish.IO - Sushi Battle
Fish.IO - Sushi Battle
Fish.IO - Sushi Battle
Be the Fish King in aquarium
Free

Dive into the ocean world of Fish.IO - Sushi Battle where you control a baby shark and hunt for fish while avoiding sharp enemies. Upgrade blades, collect fish heads, and dominate the sea to become the ultimate Fish King in this IO game!

🎮 Games
(12K)
9
Zen Koi Pro
Zen Koi Pro
Zen Koi Pro
Ad-free koi breeding & relax
$9.99
🎮 Games
(197)
10
Fish Tycoon 2 Virtual Aquarium
Fish Tycoon 2 Virtual Aquarium
Fish Tycoon 2 Virtual Aquarium
A lovely real-time aquarium!
Free

Dive into a real-time virtual aquarium where you breed and sell fish to upgrade your tank in this fun tycoon simulator. With 400 species of fish, upgrades, decorations, and more, create your own fish empire!

🎮 Games
(3.8K)
11
Splash — Fish Aquarium
Splash — Fish Aquarium
Splash — Fish Aquarium
Ocean wonders await!
Free

Immerse yourself in the world of underwater wonders as you care for a vibrant ocean reef, nurture a variety of fish species, and explore fascinating marine life in this captivating mobile game. Dive into the aquatic adventure today!

🎮 Games
(6.2K)
12
Koi Farm
Koi Farm
Koi Farm
A koi breeding game.
$2.99

This game lets you explore an infinite variety of koi patterns by breeding and crossbreeding fish, discovering new mutations along the way. Collect and trade your favorite koi as digital trading cards and share them with others.

🎮 Games
(13)
13
Pondlife — Fish, Frogs & More!
Pondlife — Fish, Frogs & More!
Pondlife — Fish, Frogs & More!
A pond full of surprises!
Free

"Pondlife" is a relaxing fish game that invites you to discover an enchanted pond, nurture a variety of freshwater species, and transform your sanctuary into a thriving underwater world. Collect and care for fish, frogs, turtles, and other captivating creatures, while decorating your pond and unlocking new environments. Immerse yourself in this serene and cozy experience, where you can enjoy hours of peaceful aquarium-like gameplay.

🎮 Games
(227)
14
Fish Farm 3 - Aquarium
Fish Farm 3 - Aquarium
Fish Farm 3 - Aquarium
Aquarium Simulator
Free

Experience a realistic aquarium world on your device with Fish Farm 3 - Aquarium Simulator. Buy, breed, and care for a variety of fish while customizing your aquariums with decorations and different environments. Enjoy features like feeding, breeding, and collecting fish rewards in this immersive 3D aquatic experience.

🎮 Games
(6.5K)
15
Picture Fish - Fish Identifier
Picture Fish - Fish Identifier
Picture Fish - Fish Identifier
Fish ID Verify by Picture
Free

Identify fishes instantly with Picture Fish! Snap or upload a picture of a fish to get fast and accurate identification of over 2500 species. Join a dynamic community, access fish-keeping tips, and explore a rich database of fish information. Upgrade to Picture Fish Premium for expert answers, HD wallpapers, and an ad-free experience. Explore more at [link to app].

📚 Education
(5K)
16
Paradise - Fish Aquarium
Paradise - Fish Aquarium
Paradise - Fish Aquarium
Relaxing Ocean Aquarium
Free

Dive into Fish Paradise, a relaxing ocean aquarium app where you can design unique underwater aquariums, raise and breed beautiful fish, and discover sea creatures. Interact with friends, send gifts, and chat with other players in this immersive aquatic world. Join the community and start creating your underwater oasis today!

🎮 Games
(154)
17
My Koi
My Koi
My Koi
Your personal underwater oasis
$2.99

Create your own serene underwater oasis with My Koi - a relaxing fish pond app where you can customize, feed, and watch your own unique koi fish grow. Escape and relax with no in-app purchases or advertising. Download now on any 64-bit iOS device.

🎮 Games
(218)
18
Pocket Pond 2
Pocket Pond 2
Pocket Pond 2
by TriggerWave LLC
Free

Create your own serene and beautiful pond oasis with a variety of interactive koi breeds, pond creatures, and customization options. Interact with your koi family, visit friends' ponds, and enjoy fishing at the Mystery Pond. Customize your pond and relax in a tranquil environment.

🎮 Games
(288)
19
Fish Farm
Fish Farm
Fish Farm
by bitbros Inc.
Free

Create your own aquatic world with a variety of fish and decorations in this 3D aquarium app. Care for your fish, design stunning habitats, and enjoy the serene underwater experience on your iOS device!

🎮 Games
(382)
20
FishVerify: ID & Regulations
FishVerify: ID & Regulations
FishVerify: ID & Regulations
#1 Fish Identification App
Free

FishVerify is a mobile application that helps users identify various species of fish through photographs. Simply snap a picture of the fish, and the app will provide information on the species. Never struggle to identify a fish again – download FishVerify now!

⚽ Sports
(1.9K)

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