# AQUARIUM: Water Logic Puzzle — Fill the tanks, solve by logic

> Fill the tanks, solve by logic (iPhone/iPad app by torankirite.)

- Source: https://appshunter.io/ios/app/aquarium-water-logic-puzzle/id6791785605 (this page in markdown: same URL + `.md`)
- Developer: [torankirite](https://appshunter.io/developer/1883564850)
- Category: Games, Education, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, Japanese
- Released: 2026-08-20
- Data updated: 2026-10-17

## What is AQUARIUM?

Pour water. Match the numbers.
AQUARIUM is a calm logic puzzle where you decide how high the water rises in each tank.
Every puzzle has exactly one answer, so you can think it through without guessing.

■ How it works
- Thick walls divide the grid into tanks
- Water settles at the bottom, and its surface is always level
- The number beside each row and column tells you how many of its cells hold water
- Match every number to solve the puzzle
You'll learn it in a minute, and it keeps getting deeper.

■ Features
- Four levels: Easy 6×6, Medium 7×7, Hard 8×8 and Expert 9×9
- Hard and Expert hide some clues as "·" for a real brain teaser
- A new daily puzzle every day, with streak tracking
- Every board is checked to have exactly one solution
- Tap to switch between water, empty and unknown, or drag to pour
- Optional gravity assist fills the tank below as you go
- My Aquarium: Medaka, Neon Tetras and more join your tank as you solve, and their schools keep growing
- Track solves, best times and average times by difficulty
- Learn the rules on a small interactive tutorial board

■ Perfect if you
- Love Sudoku, nonograms or griddlers and want something new
- Want a few quiet, focused minutes on the commute or before bed
- Prefer a clean, relaxing look over flashy effects
- Enjoy slowly collecting and growing something

■ Privacy
- No account or sign-in
- Your play records stay on your device
- No tracking and no third-party ad networks
- To introduce our other apps, the app may load public information from the App Store. It makes no other network requests

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Is AQUARIUM safe?

Not enough ratings yet to assess AQUARIUM.

## Is AQUARIUM legit?

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


## Version history (last 3 releases)

### 1.2 — 2026-10-10

Now optimized for iPhone Duo and iPad.
Minor improvements.

### 1.1 — 2026-09-28

- My Aquarium: new friends join your tank as you solve puzzles
- New water color themes
- Stability improvements

### 1.0 — 2026-08-21

No release notes.

## Apps similar to AQUARIUM

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Shikaku - Logic Puzzle](https://appshunter.io/ios/app/shikaku-logic-puzzle/id6811387123) | 5.0 (1) | Free | Games |
| [Hashi Bridges - Puzzle Islands](https://appshunter.io/ios/app/hashi-bridges-puzzle-islands/id6759544698) | — | Free | Games |
| [Jigsaw Puzzles: Cozy Offline](https://appshunter.io/ios/app/jigsaw-puzzles-cozy-offline/id6791534371) | — | Free | Games |
| [Tents - Trees puzzle](https://appshunter.io/ios/app/tents-trees-puzzle/id6752574156) | — | Free | Games |
| [Camping master : tents & trees](https://appshunter.io/ios/app/camping-master-tents-and-trees/id1635345196) | 5.0 (1) | Free | Games |
| [Tektologic - Logic Puzzle](https://appshunter.io/ios/app/tektologic-logic-puzzle/id6794801076) | 4.6 (8) | Free | Games |

## More apps by torankirite

- [EyeCare Tracker](https://appshunter.io/ios/app/eyecare-tracker/id6760272190)
- [Marche Sales - QR Register](https://appshunter.io/ios/app/marche-sales-qr-register/id6760284300)
- [HydroRing - Water Tracker](https://appshunter.io/ios/app/hydroring-water-tracker/id6760393366)
- [Potepote - Dog Walk Journal](https://appshunter.io/ios/app/potepote-dog-walk-journal/id6760515197)
- [MediTrack – Medication Tracker](https://appshunter.io/ios/app/meditrack-medication-tracker/id6760528101)
- [ためブタ](https://appshunter.io/ios/app/id6760604349)

All apps by torankirite: https://appshunter.io/developer/1883564850

---

*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 2026-10-17.*