# QUAD PRISM — Slide blocks, fill the shape

> Slide blocks, fill the shape (iPhone/iPad app by KEIGO NAKATSUKA.)

- Source: https://appshunter.io/ios/app/quad-prism/id6813806099 (this page in markdown: same URL + `.md`)
- Developer: [KEIGO NAKATSUKA](https://appshunter.io/developer/6812283716)
- Category: Games, Family, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 134 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-09-29
- Data updated: 2026-10-02

## What is QUAD PRISM?

Fill the outlined shape exactly with the blocks you have. That's the whole rule.

But you don't place a block where you want it. Drag across the board and the block flies in from that direction, stopping the moment it hits a block already there. So with the same pieces in hand, the order you fire them and the side you fire them from change everything.

-- 10 worlds, 100 shapes --
An apple, a butterfly, a whale, a constellation. Every world brings its own colours and scenery. These are 100 levels built around one moment: watching the picture rise out of the grid.

-- 3 difficulties, 300 crowns --
Easy: unlimited hints, unlimited planning.
Normal: 3 hints, and planning up to half your blocks.
Hard: no hints, no planning. Reach a dead end and the board shatters, and you start over.

Solve a level again on a higher difficulty and its crown is repainted, bronze to silver, silver to gold. 100 levels with 3 difficulties each: 300 crowns in all.

-- Made so you never get stuck --
Planning (ghost blocks): tap the board to sketch where you intend to place a piece. The count appears at the bottom-left of each block, so you always know how many you have left.
Undo: step back one move, with no time limit. One block in the wrong place shouldn't cost you the level.
Dead-end notice: the instant the board can no longer be completed, the game tells you, and tells you why. No more agonising over a board that was already lost.

-- About ads --
A full-screen ad appears once every three levels you clear. It never interrupts you in the middle of a puzzle.
When you run out of hints you can watch a short video for one more, entirely your choice.
A one-time purchase removes full-screen ads. Buying it changes nothing about the difficulty or the crowns.

-- Languages --
Japanese / English / Simplified Chinese / Traditional Chinese / Korean / Spanish / French / German / Portuguese / Italian

N.K. Works

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Is QUAD PRISM safe?

Not enough ratings yet to assess QUAD PRISM.

## Is QUAD PRISM legit?

QUAD PRISM has limited verification signals. The AppsHunter Legitimacy Score for QUAD PRISM is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-29

No release notes.

## More apps by KEIGO NAKATSUKA

- [Ikkaku Ichie: Kanji Puzzle](https://appshunter.io/ios/app/ikkaku-ichie-kanji-puzzle/id6815909260)

All apps by KEIGO NAKATSUKA: https://appshunter.io/developer/6812283716

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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 2026-10-02.*