# JAPAN MAP STACK vs SkyTower Challenge

JAPAN MAP STACK and SkyTower Challenge are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

JAPAN MAP STACK ships an update every 3 weeks, SkyTower Challenge every 2 weeks. The most recent releases landed on June 1, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | JAPAN MAP STACK | SkyTower Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/japan-map-stack/id1360634666/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 93 MB | 171 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YUUTA TAKI](https://appshunter.io/developer/1360634665) | [Takuma Takahashi](https://appshunter.io/developer/1704744113) |

## What reviewers say

### JAPAN MAP STACK

[App page](https://appshunter.io/ios/app/japan-map-stack/id1360634666)

A physics puzzle game where players stack colorful map pieces as high as possible. It features simple one-finger controls and is free to play.

**Highlights:** Physics-based stacking gameplay, Colorful map pieces, Simple one-finger controls, Free to play

**Features:** macOS Compatibility

**In-app purchases:** none


### SkyTower Challenge

[App page](https://appshunter.io/ios/app/skytower-challenge/id6464111672)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JAPAN MAP STACK free?

JAPAN MAP STACK is free to download, with no in-app purchases.

### Is SkyTower Challenge free?

SkyTower Challenge is free to download, with no in-app purchases.

### Do JAPAN MAP STACK or SkyTower Challenge have ads?

Both JAPAN MAP STACK and SkyTower Challenge show ads.

### Which is updated more often, JAPAN MAP STACK or SkyTower Challenge?

JAPAN MAP STACK ships an update every 3 weeks, and SkyTower Challenge every 2 weeks. Most recently, JAPAN MAP STACK was updated on June 1, 2026 and SkyTower Challenge on September 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*