Flutter vs Zen Koi 2
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Flutter
Create a vibrant rainforest sanctuary by collecting and nurturing hundreds of real butterfly species. Watch them grow through their life cycle, learn fascinating facts, and expand your magical forest with beautiful decorations. Enjoy relaxing gameplay with a calming soundtrack and discover new species through missions and events.
- Collect 400+ real butterfly species
- Nurture butterflies through their life cycle
- Expand and decorate your forest sanctuary
- Engage in missions and limited-time events
- Relaxing gameplay with peaceful ambiance
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Watch your rainforest sanctuary come to life as you collect, nurture, and learn about hundreds of real butterfly species. Nurture each species through their incredible life cycle, feeding to help them grow from caterpillar to chrysalis to butterfly. Watch your Flutterpedia come alive with fascinating facts about each butterfly you collect. Behold their stunning wing patterns and playful quirks as they flutter around your rainforest sanctuary. Each butterfly is beautifully illustrated and based on real species from around the world. Discover new species, expand your collection, and create a thriving, magical rainforest. Features * Collect 400+ Butterflies: Discover real species from around the world, each beautifully illustrated with vibrant colors and unique wing patterns. * Nurture Each Species: Feed and grow butterflies through their amazing life cycle, from caterpillar to chrysalis to butterfly. * Expand and Decorate Your Forest: Expand your sanctuary and adorn it with plants and magical décor to help you progress. * Missions and Events: Missions, updates, and limited-time events bring exciting new butterflies, decor, and rewards. There is always something new to discover! * Relaxing Gameplay: Unwind with peaceful rainforest ambiance and a calming soundtrack. Made with love by Runaway, the award-winning studio behind some of the world’s most beloved nature games. Please note: This game is free-to-play but does include in-app purchases. For support or suggestions, contact: support@runaway.zendesk.com.
Zen Koi 2
Nurture and breed vibrant koi, guiding them through a serene journey to transform into majestic dragons. Customize your underwater sanctuary and create unique constellations in a breathtaking celestial realm.
- Breed and nurture koi
- Transform koi into dragons
- Explore the Dragon Realm
- Craft and share constellations
- Customize personal aquarium
- Compete on leaderboards
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Dive into Tranquility: Unwind and Ascend with Zen Koi 2 (Free-to-Play) Embark on a captivating journey of serenity and wonder with Zen Koi 2, the enchanting sequel to the beloved Zen Koi game. Immerse yourself in the soothing flow of the Koi's motion. Tranquil gameplay and calming music complete the serene experience. Breed and nurture vibrant koi and witness their transformation into majestic dragons, all within the comfort of your mobile device. A Legacy of Relaxation Evolves: Zen Koi 2 builds upon the core gameplay that captivated players in the original, offering a soothing and relaxing experience suitable for all ages. While retaining the essence of the classic collection mechanic, Zen Koi 2 introduces exciting new features that enrich your gameplay journey: Ascend to the Dragon Realm: Witness the culmination of your carp's journey as they transcend the koi pond and ascend to a celestial plane. Explore the vast expanse of the Dragon Realm, a breathtaking astral space adorned with shimmering constellations. Unleash Your Creativity: Gather essence as your dragon soars through the Dragon Realm. Use this essence to craft unique and shareable constellations, expressing your artistic vision and leaving your mark on the celestial canvas. Cultivate Your Personal Aquarium: Descend from the ethereal heights and return to your cherished koi pond. In 'My Pond', you can create a personalized underwater zen garden. Decorations range from plants and rocks, to seasonal effects, sand ripples, flowers, and glowing stones. Arrange and customize your underwater haven to reflect your individual style and preferences. Witness the Beauty of Transformation: As you breed and nurture your koi through their lifecycle, marvel at their stunning visual transformations. Observe the vibrant patterns and colors displayed by your koi, culminating in the awe-inspiring metamorphosis into majestic dragons. Connect with Family and Friends: Share your love for Zen Koi 2 with loved ones. Compete in friendly leaderboards, showcasing your koi fish collection and dragon constellations with your family and friends. Beyond Relaxation: A Journey of Discovery and Expression: Zen Koi 2 transcends the boundaries of a mere relaxation tool by offering players a platform for creativity and self-expression. The ability to craft and share constellations in the Dragon Realm allows players to explore their artistic side, while the customizable My Pond fosters a sense of ownership and individuality. Additionally, the family-friendly nature of the game encourages social engagement and fosters a sense of community among players of all ages. Unveiling the Art of Zen Koi 2: The developers at LandShark Games have poured their passion and dedication into crafting a visually captivating and emotionally engaging experience with Zen Koi 2. The game's breathtaking visuals transport players to a world of serenity, while the calming soundtrack soothes the mind and promotes relaxation. More than just a game, Zen Koi 2 offers a refuge from the daily grind, a space to unwind, connect with yourself, and unleash your inner artist. Whether you seek a moment of peace amidst a busy schedule, a creative outlet to express yourself, or a fun and engaging experience to share with friends and family, Zen Koi 2 welcomes you to embark on a journey of tranquility and discovery. Download Zen Koi 2 today and begin your ascent! 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).
Screenshots
Verdict
The clearest difference is update cadence: Flutter at every 8 days against Zen Koi 2's monthly. Zen Koi 2's advantage is ratings volume (30K vs 4.9K). On price, rating, review sentiment and ads 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
Both are free to download. Flutter sells 10 one-off in-app purchases and Zen Koi 2 sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Flutter against 4.8 for Zen Koi 2. That said, the two scores are not equally well evidenced: Zen Koi 2 has 30K ratings behind it against 4.9K, so its average is the more settled of the two. Written reviews are what separate them: 73% of Flutter's written reviews are positive against 71% of Zen Koi 2's.
Flutter ships an update every 8 days, Zen Koi 2 monthly. Both last shipped on November 10, 2026.
| Parameter | Flutter | Zen Koi 2 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (4.9K ratings) | 4.8 (30K ratings) — better |
| Positive reviews | 72.7% of reviews — better | 71.4% of reviews |
| Number of ratings | 4.9K | 30K — better |
| Update frequency | Every 8 days — better | Monthly |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 539 MB | 153 MB |
| Age rating | +4 | 4+ |
| Developer | Runaway | LandShark Games Pte. Ltd. |
Customer experience
Flutter
Zen Koi 2
User reviews
Flutter
From 4.9K App Store ratingsWhat we love
- 🦋 Beautiful and relaxing game
- 👍 Informative and educational
- 🎨 Gorgeous graphics and animations
- 🎶 Calming music and ambiance
Room to improve
- 🐛 Frequent crashes and bugs
- 💰 Expensive in-app purchases and expansions
- ⏱️ Slow progression and long wait times
- 🔒 Requires constant internet connection
Zen Koi 2
From 30K App Store ratingsWhat we love
- 🌊 Relaxing and calming game
- 🐉 Ability to play as dragons
- 🎨 Beautiful graphics and animations
- 🎶 Soothing music
- 🔓 No intrusive ads
Room to improve
- 🕰️ Slow progression and high costs for new koi slots
- 🐟 Repetitive prey-catching gameplay
- 🔌 Connectivity issues and loading problems
- 🤖 Unsatisfying dragon gameplay
Bugs and requests
Flutter
Reported bugs
3 issues- Game resets progress after updates
- Inability to access Flutterpedia and achievements
- Inconsistent performance and freezing issues
Requested features
4 requests- Offline mode
- Ability to sell or remove unwanted butterflies
- More interactive events and mini-games
- Expanded forest and storage space
Zen Koi 2
Reported bugs
2 issues- Saved progress being lost or not loading properly
- Glitches with dragon appearances
Requested features
5 requests- Offline play mode
- More variety in pond environments and prey
- Ability to interact with and customize dragons
- Easier way to complete collections
- Improved friend integration and trading
In-app purchases
Flutter
- Beetle Bank$0.99
- 50 Flutterbucks$1.99
- Amazing Value Pack$1.99
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- Starter Park 001$2.99
- Starter Pack B$4.99
- 130 Flutterbucks$4.99
- Nectar Booster$4.99
- Spirit Booster$4.99
- 275 Flutterbucks$9.99
- 700 Flutterbucks$24.99
Zen Koi 2
- Small handful of Pearls$1.99
- Starter Pack$1.99
- Value Pack$1.99
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- Offer Pack$1.99
- Shodo Pack$2.79
- Fun Pack$3.99
- Handful of Pearls$4.99
- Nice Pack$8.99
- Bag of Pearls$9.99
- Tsuru Pack$9.99









