# Paper Tank — A fish tank folded from paper

> A fish tank folded from paper (iPhone/iPad app by Jie GU.)

- Source: https://appshunter.io/ios/app/paper-tank/id6813969189 (this page in markdown: same URL + `.md`)
- Developer: [Jie GU](https://appshunter.io/developer/6813969191)
- Category: Games, Casual, Simulation
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 8 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-09-23
- Data updated: 2026-10-01
- User reviews in markdown: https://appshunter.io/ios/app/paper-tank/id6813969189/reviews.md

## What is Paper Tank?

A shallow box, folded from paper and filled with water, exactly the size of your phone. Inside it, ten thousand small paper fish drift in a real current — they settle, gather, part and swirl the way things do in water — and a paper shark cruises among them.

There is nothing to win. Drag a finger and the water follows it, sweeping the papers along and sending ripples across the surface. Tilt the phone and you look into the box: the walls, the floor and the papers shift with real depth. Leave it on the desk and it keeps going, quietly, on its own.

PAPERS
Four muted looks — Lagoon, Dusk, Sakura and Ink. The whole tank re-colours in a second.

ANIMALS
The reef shark is yours from the start. The hammerhead, with its wide folded head, and the whale shark, a spotted sheet folded broad and slow, are each a one-time unlock. Tap the shark to open the settings; it is the only button.

MADE TO BE LEFT RUNNING
No score, no timer, no notifications.

Paper Tank collects no data.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Hammerhead | $0.99 | one-time |
| Whale Shark | $0.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-09-23

No release notes.

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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 2026-10-01.*