Comparison

Zen Koi Classic vs Turtle Evolution

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Zen Koi Classic

Nurture and collect vibrant Koi fish in a serene underwater world. Watch them grow, evolve into majestic dragons, and discover hundreds of unique varieties. Share your collection with friends and enjoy a calming, visually stunning experience.

Highlights
  • Breed and collect hundreds of unique Koi varieties
  • Watch Koi evolve into majestic dragons
  • Soothing music and mesmerizing visuals
  • Intuitive single-touch controls
  • Share and gift Koi with friends
  • Limited edition rewards for collectors
Features
Read full description

Looking for a relaxing game? Dive into Tranquility: Unwind and Ascend with Zen Koi Classic (Free-to-Play) Embark on a captivating journey of transformation and serenity in Zen Koi Classic, the enchanting mobile game where you experience the vibrancy and breathtaking beauty of the graceful Koi. Immerse yourself in a calming atmosphere filled with soothing music and mesmerizing visuals as you nurture these magnificent fish, witnessing their growth and culminating metamorphosis into majestic dragons. Unwind and Ascend: A Timeless Tale Zen Koi Classic offers a unique experience that blends relaxation with strategic collection. Breed, collect and discover beautiful Koi: witness the captivating journey of your Koi as they evolve from tiny hatchlings into breathtaking creatures, each boasting unique colors and intricate patterns. Guide them through their life cycle, culminating in a stunning transformation that embodies the legend of the Koi's ascension into a dragon. Features: Free-to-Play: Enjoy the core gameplay experience without any purchase required. Soothing and Intuitive Gameplay: Immerse yourself in a world of tranquility with simple controls and a serene environment. Unique Flowing Action: Guide your Koi with a single touch, mimicking their graceful movements through the water. A Calming Oasis: Find peace in the beautiful aquatic environment, enhanced by soothing music and sound effects. Unveiling a Spectrum of Koi: Discover and collect hundreds of stunning Koi varieties, each boasting unique color combinations and patterns. Some rare specimens await the most dedicated collectors! Share Your Passion: Share and gift magnificent Koi you have bred and collected with friends and fellow players. Limited Edition Reward: Collect and complete all Koi and Dragon collections in Zen Koi Classic and claim unique decorations for your personal pond and aquarium in Zen Koi 2 as a special bonus! Unveiling the Depths of Zen Koi Classic: A Visual Symphony: Immerse yourself in an underwater world teeming with vibrant life with plenty of prey to catch. The Calming Symphony: Escape the daily grind with a serene soundtrack by Kiat from System Sovereign featuring gentle melodies and calming ambient sounds. Soundscapes are designed by IMBA to further enhance the sense of tranquility. The Emotional Connection: Witness the heartwarming growth and transformation of your Koi. Observe their vibrant colors and discover a progression of beautiful patterns, building a special bond with your pond companions. As they evolve into majestic dragons, experience a sense of accomplishment for nurturing them throughout their journey. Download Zen Koi Classic today and embark on a captivating odyssey of transformation and tranquility! Note: Zen Koi is free to download and play. However, optional items are available via In-App Purchase within the game to expand upon your gameplay experience. By downloading this game, you agree to our Terms of Service & Privacy Policy: http://www.landsharkgames.com/terms-of-service/ http://www.landsharkgames.com/privacy-policy/ Rated 3+ by the Indonesia Game Rating System (IGRS).

About

Turtle Evolution

Merge and evolve various turtle species to discover new creatures. Earn in-game currency by collecting eggs or tapping turtles. Customize your turtles with hats and colors while navigating through different levels and avoiding impostors.

Highlights
  • Merge similar turtles to evolve
  • Discover new turtle species
  • Collect turtle eggs for coins
  • Tap turtles to lay eggs
  • Customize turtles with hats and colors
  • Avoid impostors
Features
Read full description

Dude, it’s time to CHILL OUT! It’s time to leave all the RUSH behind you and enjoy the most relaxed version of the EVOLUTION series: the turtles are finally here! Get ready to embrace all the peace of mind of the wisest animals on earth (and sometimes in the undersea world too)! In this AWESOME evolution game, you’ll meet all kinds of turtles! Make them evolve and discover new ones while you make money out of the very special TURTLE EGGS! HOW TO PLAY • Drag and drop similar turtles to create new mysterious creatures • Use turtle egg coins to buy new turtles and make even more money • Alternatively, fiercely tap a turtle to make them lay eggs and collect more coins! HIGHLIGHTS • Different levels and many different turtle species to discover • Watch out for the impostors that will get in your way! • Put on funny HATS in your turtles and make them unique! • Paint your turtles the color you want and create a very very special group of turtles! No turtles were harmed in the making of this game, only developers. Come and check them out! Disclaimer: While this App is completely free to play, some additional content can be purchased for real money in-game. If you do not want to use this feature, please turn off in-app purchases in your device's settings. Like our page on Facebook and be the first to know about our upcoming games and updates! http://fb.com/tappshq

Screenshots

Zen Koi Classic4 screens
Turtle Evolution4 screens

Verdict

The call

The clearest difference is update cadence: Turtle Evolution at every 6 weeks against Zen Koi Classic's every 3 months. Turtle Evolution also leads on ratings volume (9.9K vs 2.1K) and review sentiment (94% vs 86%). On price, rating, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Zen Koi Classic sells 10 one-off in-app purchases and Turtle Evolution sells 13 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Zen Koi Classic against 4.8 for Turtle Evolution. Both are backed by a comparable volume of ratings — 2.1K and 9.9K respectively. Written reviews are what separate them: 86% of Zen Koi Classic's written reviews are positive against 94% of Turtle Evolution's.

UpkeepUpdate frequency

Zen Koi Classic ships an update every 3 months, Turtle Evolution every 6 weeks. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
Zen Koi Classic versus Turtle Evolution: the parameters behind the verdict, then further details
ParameterZen Koi ClassicTurtle Evolution
PriceFreeFree
Rating4.7 (2.1K ratings)4.8 (9.9K ratings) — better
Positive reviews85.6% of reviews93.8% of reviews — better
Number of ratings2.1K9.9K — better
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size128 MB153 MB
Age rating4+9+
DeveloperLandShark Games Pte. Ltd.TPG TECNOLOGIA DA INFORMACAO LTDA

Customer experience

Zen Koi Classic

All ratings2,057 ratings
Positive93.1%
Neutral3.8%
Negative3.1%
Written reviews383 reviews
Positive85.6%
Neutral7.6%
Negative6.8%

Turtle Evolution

All ratings9,920 ratings
Positive96.0%
Neutral2.9%
Negative1.2%
Written reviews435 reviews
Positive93.8%
Neutral3.2%
Negative3.0%

User reviews

Zen Koi Classic

From 2.1K App Store ratings

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
  • 🎶 Soothing and pleasant background music

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
  • 🆕 Concerns about losing progress after updates
  • 📺 Disruptive full-screen ads

Turtle Evolution

From 9.9K App Store ratings

What we love

  • 🐢 Cute and fun turtles
  • 👍 Enjoyable gameplay
  • 💡 Ability to customize turtles
  • 🚀 Addictive and engaging

Room to improve

  • 🐛 Disappearing turtle accessories
  • 🔍 Difficulty progressing without ads
  • 🔋 Slow crate drop rate

Bugs and requests

Zen Koi Classic

Reported bugs

3 issues
  • Koi and dragon progress lost after updates
  • Inconsistent koi movement and speed issues
  • Ads causing frequent crashes or freezes

Requested features

5 requests
  • Ability to play as or interact with dragons
  • More koi slots or alternative ways to expand pond
  • Easier ways to earn pearls without watching ads
  • Ability to name or customize koi and dragons
  • Zoom out feature to see full pond layout

Turtle Evolution

Reported bugs

3 issues
  • Glitches with turtle accessories
  • Slow loading times
  • Invisible ad close buttons

Requested features

4 requests
  • Ability to share coins/diamonds with friends
  • More customization options
  • Faster progression without ads
  • Expanded game content

In-app purchases

10 purchases

Zen Koi Classic

One-time10
  • Starter Pack$1.99
  • Small Handful of pearls$1.99
  • Handful of pearls$4.99
Show 7 more
  • Hasu Pack$4.99
  • Bag of pearls$9.99
  • Tenshi Pack$9.99
  • Splatto Pack$9.99
  • Yajiri Pack$9.99
  • Monkī Pack$19.99
  • Nami Pack$19.99
13 purchases

Turtle Evolution

One-time13
  • Remove Ads$1.99
  • Hard Currency Pack 1$1.99
  • pack with diamonds$1.99
Show 10 more
  • pack of rubies$1.99
  • instant coins doubler$1.99
  • Shop Bundle 1$2.99
  • Hard Currency Pack 2$4.99
  • big pack of rubies$5.99
  • income doubler$5.99
  • Shop Bundle 2$5.99
  • Trinket$6.99
  • Hard Currency Pack 3$9.99
  • starter bundle discount$9.99

Questions

Is Zen Koi Classic free?
Zen Koi Classic is free to download, with in-app purchases available.
Is Turtle Evolution free?
Turtle Evolution is free to download, with in-app purchases available.
Which has better reviews, Zen Koi Classic or Turtle Evolution?
Turtle Evolution is rated higher. Zen Koi Classic averages 4.7 out of 5 from 2.1K ratings, while Turtle Evolution averages 4.8 from 9.9K ratings.
Do Zen Koi Classic or Turtle Evolution have ads?
Both Zen Koi Classic and Turtle Evolution show ads.
Which is updated more often, Zen Koi Classic or Turtle Evolution?
Zen Koi Classic ships an update every 3 months, and Turtle Evolution every 6 weeks. Most recently, Zen Koi Classic was updated on October 13, 2026 and Turtle Evolution on October 14, 2026.

Other comparisons