# Aquariumulator: Aquarium Sim — Build your dream aquarium

> Build your dream aquarium (iPhone/iPad app by Gen Takagaki.)

- Source: https://appshunter.io/ios/app/aquariumulator-aquarium-sim/id6774830202 (this page in markdown: same URL + `.md`)
- Developer: [Gen Takagaki](https://appshunter.io/developer/6774018592)
- Category: Games, Casual, Simulation
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 53 MB
- Languages: Japanese
- Released: 2026-06-07
- Data updated: 2026-10-16

## What is Aquariumulator?

Welcome, aquarium director!

Aquariumulator is a cozy, pixel-art management sim where you build your very own aquarium from the ground up. Welcome marine favorites — from clownfish and dolphins to orcas and the mighty whale shark — display them in your tanks, and draw in crowds of visitors. Manage water quality and temperature, invest in facilities, and use the changing seasons to your advantage as you grow the greatest aquarium in the world.

■ Collect Marine Life
155 species to discover. Pull the gacha, place your creatures in tanks, and watch the crowds grow with each tank's appeal. Duplicates can be sold for a price based on their rarity, and filling in more of the catalog earns you collection rewards.

■ Run Your Aquarium
Tanks work on a rental contract: pay an upfront fee, then juggle the daily rent as you expand. Choose from basic tanks, coral reefs, the deep sea, the open ocean, a jellyfish hall, and more. Climb the ranks to lease even more tanks.

■ Build Facilities
Expand a tank to raise its creature and visitor capacity, install filters to slow water decay, and hire a keeper to handle water changes and refill feed for you — so you can spend more time simply watching the fish.

■ Manage Water & Temperature
Leave the water alone and it turns murky — keep it clean with regular water changes. Each tank also prefers a certain water temperature, so matching it to the season is the key to a thriving aquarium.

■ Read the Business Report
Today's income and expenses, recent trends, each tank's contribution, a satisfaction breakdown, and your progress toward the next rank — all in one place, so you can plan your next move.

■ Enjoy the Seasons
Spring, summer, autumn, and winter cycle through. Different creatures and tanks shine each season, and visitor numbers shift too. Watch for limited-time seasonal events!

■ Combos & Decorations
Pair compatible creatures and decorations to trigger combo bonuses! Decorate your tanks with over 110 decorations to bring out their full charm.

■ Missions & Ranking
Tackle a huge variety of missions and daily missions. Your aquarium climbs through ranks as your all-time visitor count grows, earning prize money at every rank-up and unlocking new tanks and visitors. Over 50 quirky visitor types are waiting to be discovered.

With gentle pixel art and a bright, friendly look, Aquariumulator is easy to pick up and wonderfully easy to sink into. Start building your dream aquarium today!

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 広告無効化 | $2.99 | one-time |
| プレミアムガチャ(1回) | $0.99 | one-time |
| プレミアムガチャ(10回) | $9.99 | one-time |


## Is Aquariumulator safe?

Not enough ratings yet to assess Aquariumulator.

## Is Aquariumulator legit?

Aquariumulator: Aquarium Sim appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Aquariumulator is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.4.0 — 2026-10-14

What's new in 1.4.0
- Sell duplicate creatures: prices scale with rarity, and you can sell all duplicates at once
- Catalog rewards: earn prize money as you collect more species
- New tank Facilities: Expansion (more creature, visitor and decor slots), Filter (slower water decay) and Keeper (automatic water changes and feed refills)
- The number of tanks you can lease now grows with your rank, up to 10
- New Business Report: income and expense breakdown, each tank's contribution, satisfaction details and rank progress (tap the balance at the top of the screen)
- See the list of active combos right on the tank screen

### 1.3.0 — 2026-10-05

What's new in 1.3.0
- 53 new sea creatures, for 142 species in total (Pacific cod, yellowtail amberjack, unicorn crestfish and more)
- New "Phantom Reef" premium gacha: rare reef fish and hammerhead sharks only, rarity 4 or higher guaranteed
- Pinch and double-tap to zoom in the immersive view
- Lots of new decorations: the decoration gacha now has 110 items
- Ultra-rare creatures are now displayed larger
- Banner ads can be closed with the × button

### 1.2.0 — 2026-06-13

What's New :
- Added multi-language support (English, Simplified Chinese, Korean)
- Minor bug fixes
- Gameplay balance adjustments

### 1.1.0 — 2026-06-11

• Creature size now varies by tank
• Added a collection encyclopedia
• Minor bug fixes

### 1.0.1 — 2026-06-09

Minor bug fixes.

## Apps similar to Aquariumulator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Poka Poka Aquarium Tycoon](https://appshunter.io/ios/app/poka-poka-aquarium-tycoon/id6819514855) | — | Free | Games |
| [Catchthetid](https://appshunter.io/ios/app/catchthetid/id6788674882) | — | Free | Games |
| [Deep Sea Bubble Adventure](https://appshunter.io/ios/app/deep-sea-bubble-adventure/id6761891882) | — | Free | Games |
| [夜更かしの水族館](https://appshunter.io/ios/app/id6799299669) | — | Free | Games |
| [Paws Await](https://appshunter.io/ios/app/paws-await/id6790431754) | — | Free | Games |
| [シマエナガのもふもふブラスト](https://appshunter.io/ios/app/id6800307777) | — | Free | Games |

## More apps by Gen Takagaki

- [Zoomulator](https://appshunter.io/ios/app/zoomulator/id6774018590)
- [Couples Shopping List & Split](https://appshunter.io/ios/app/couples-shopping-list-and-split/id6775222668)
- [SPACE AR: Stargazing Star Map](https://appshunter.io/ios/app/space-ar-stargazing-star-map/id6782012749)

All apps by Gen Takagaki: https://appshunter.io/developer/6774018592

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-16.*