Comparison

My Koi vs AQUALIA

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

Head to head
About

My Koi

Create and nurture your own virtual koi pond. Customize fish, environments, and watch them grow. This relaxing app offers a serene escape with beautiful graphics and calming sounds.

Highlights
  • Customize fish scales and patterns
  • Manage multiple ponds and fish
  • Decorate pond environment
  • Unlock new fish varieties
  • Track fish growth and happiness
  • Experience changing time of day
  • Enjoy ambient soundscapes
Features
Read full description

My Koi, number 1 hit on the Mac App Store (Games), is a beautiful and relaxing fish pond app. Customise and name each fish. Feed them daily. Watch them grow. Collect new fish. Escape and relax. COLLECT. GROW. NURTURE. ESCAPE. ********* "Love it love it love it - I can't keep my self from checking on them every 3 to 4 hours ... This relaxes me at work." 5 stars. - Raulito1991, USA "This was truly my best purchase on the AppStore so far, amazing graphics and gameplay and brilliant for helping me relax" 5 stars - Joes826482, UK "The best game ever!!!! - I went into the App Store a few days ago looking for a old koi game I used to play. I instead ended with this and I love it! Worth every cent, this game is so fun. " 5 Stars. - Blenore, USA "This app is so beautiful. I love relaxing and watching my koi. I feel like I have koi without all the upkeep. This has quickly become my favorite app!!!" 5 stars.- Jamelith, USA "First of all you don’t deserve 5 stars you deserve more because this game is just amazing thank you for an amazing game that so life like keep up the good work" - 5 stars. Florida 696, USA " If you are seeking out a serene experience, then look no further than My Koi". - Appaddict.net ********** With My Koi you can * Add up to 18 unique fish to each pond. Change their scales and patterns. No two fish are alike so everyone's experience will be different * Multiple ponds so you can collect more fish. Manage up to 54 fish across 3 ponds. * Customise the pond environment including rocks, plants, substrate and water colour * Unlock more fish slots and new varieties once milestones have been reached * View and track each fish underwater * Feed your fish and watch them swim to food * See your fish grow over time and see their growth stats * Name each fish * Tap them and watch them swim away * View fish happiness levels which will change depending on how much they are fed * The time of day will change as you play effecting sound and light * Enjoy ambient mode (with just the sounds) * Bring the pond to your lounge room via AirPlay and Apple TV * Enjoy the calming atmosphere and beauty of your own private koi pond whilst listening to the relaxing sounds of nature So, download My Koi now to escape and relax with your own private underwater oasis. My Koi has no in-app purchases or advertising. Suitable Platforms: Any 64bit iOS device

About

AQUALIA

Design and manage your dream aquarium, raising over 180 types of tropical fish. Decorate your tank with hundreds of items, feed your fish, and keep it clean for their steady growth. Enjoy mini-games to earn rewards and unlock new content.

Highlights
  • Raise 180+ fish types
  • Decorate with 280+ items
  • Fish feeding and tank cleaning
  • Level up fish for upgrades
  • Play integrated mini-games
  • Earn rare fish and decorations
Features
Read full description

We present to you the most beautiful fish tank in the world. Fill your fish tank with a variety of tropical fish and design the aquarium with your own concept. 1. The fun of raising various fish You can purchase eggs from over 180 types of fish and hatch and grow them yourself. Over time, the fish get hungry and the tank gets dirty. Feed the fish and keep the fish tank clean to ensure steady growth. 2. Decorate your own aquarium Create your own aquarium by arranging over 280 types of decorations as you wish. You can create a variety of aquariums that you could only dream of. 3. Grow and level up your fish! Grow your fish to 100% and upgrade levels as you gain experience. Each time you level up, fish tanks with more diverse concepts await you. 4. When you’re bored, play a mini game! Do you feel like the time spent growing fish is boring? Enjoy the high-quality mini games prepared for you. Rare fish and decorations can be obtained as bonuses! Instagram: @aqualia_game Facebook: https://www.facebook.com/aqualia.game

Screenshots

My Koi4 screens
AQUALIA4 screens

Verdict

The call

The clearest difference is price: AQUALIA at Free against My Koi's $2.99. AQUALIA also leads on update cadence (monthly vs every 3 months) and ratings volume (1K vs 218). My Koi's advantage is in-app purchases (none vs 10) and ads (none vs shown). On rating and device support 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

AQUALIA is free to download; My Koi costs $2.99 up front. AQUALIA sells 10 one-off in-app purchases. My Koi asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

My Koi holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 218 and 1K respectively. Written reviews point the same way: 95% of My Koi's written reviews are positive against 69% of AQUALIA's.

UpkeepUpdate frequency

My Koi ships an update every 3 months, AQUALIA monthly. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard8 real differences · 2 level
My Koi versus AQUALIA: the parameters behind the verdict, then further details
ParameterMy KoiAQUALIA
Price$2.99Free — better
Rating4.9 (218 ratings) — better4.7 (1K ratings)
Positive reviews95.3% of reviews — better68.6% of reviews
Number of ratings2181K — better
Update frequencyEvery 3 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size142 MB224 MB
Age rating4+4+
DeveloperSakana StudiosLigensoft

Customer experience

My Koi

All ratings218 ratings
Positive97.7%
Neutral0.5%
Negative1.8%
Written reviews193 reviews
Positive95.3%
Neutral2.1%
Negative2.6%

AQUALIA

All ratings995 ratings
Positive92.4%
Neutral3.5%
Negative4.1%
Written reviews156 reviews
Positive68.6%
Neutral14.7%
Negative16.7%

User reviews

My Koi

From 218 App Store ratings

What we love

  • 🌟 Stunning graphics and realistic fish animations
  • 🕹️ Intuitive and easy-to-use interface
  • 🕰️ Relaxing ambient sounds and weather effects
  • 🐟 Satisfying fish growth and customization
  • 💰 Fair pricing with no in-app purchases

Room to improve

  • 🔋 Battery drain issues on some devices
  • 🐛 Occasional freezing or crashing during fish creation
  • 🔍 Limited customization options for the pond environment

AQUALIA

From 1K App Store ratings

What we love

  • 🎨 Beautiful graphics
  • 🎶 Relaxing music
  • 🔍 Detailed fish information
  • 🎮 Fun mini-games
  • 📺 No intrusive ads

Room to improve

  • 🤖 AI-generated art
  • 🔍 Unclear game mechanics
  • 🧭 Limited camera controls
  • 🐟 Mixing of freshwater and saltwater fish
  • 🔁 Repetitive tasks

Bugs and requests

My Koi

Reported bugs

2 issues
  • Fish getting stuck or unable to move
  • Inconsistent fish growth rates or weight issues

Requested features

5 requests
  • Breeding and baby fish mechanics
  • Ability to move fish between ponds
  • More diverse fish species (e.g., goldfish, butterfly koi)
  • Expanded pond decoration options (waterfalls, structures, etc.)
  • Multiplayer or social features to share ponds

AQUALIA

Reported bugs

4 issues
  • Flashing logo causing seizure concerns
  • Slow server load times
  • Progress not saving properly
  • Inconsistent hitboxes in mini-games

Requested features

6 requests
  • Ability to sell or remove fish from main tank
  • Automatic fish growth and tank maintenance
  • Separate tanks for freshwater and saltwater fish
  • More mini-game options
  • Ability to name and level up fish
Show 1 more
  • Expanded tank customization options

In-app purchases

None

My Koi

No in-app purchases

10 purchases

AQUALIA

One-time10
  • 600,000 Hearts$1.99
  • Green field Decoration Set$1.99
  • Water Puppy Flowerhorn$2.99
Show 7 more
  • Beautiful Betta Fishes Package$3.99
  • Koi Fish Package$4.99
  • 1,500,000 Hearts$4.99
  • 2,400,000 Hearts$6.99
  • Dreamland Turtle Aquarium$9.99
  • Mystical Arowana Aquarium Set$12.99
  • Waddling Ranchu Aquarium Set$14.99

Questions

Is My Koi free?
My Koi costs $2.99, with no in-app purchases.
Is AQUALIA free?
AQUALIA is free to download, with in-app purchases available.
Which has better reviews, My Koi or AQUALIA?
My Koi is rated higher. My Koi averages 4.9 out of 5 from 218 ratings, while AQUALIA averages 4.7 from 1K ratings.
Do My Koi or AQUALIA have ads?
AQUALIA shows ads; My Koi does not.
Which is updated more often, My Koi or AQUALIA?
My Koi ships an update every 3 months, and AQUALIA monthly. Most recently, My Koi was updated on November 6, 2026 and AQUALIA on November 4, 2026.

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