# 시공간 vs 해양미래탐사 AR

The clearest difference is in-app purchases: 해양미래탐사 AR at none against 시공간's 4. 시공간's advantage is update cadence (every 2 months vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 시공간 sells 4 one-off in-app purchases. 해양미래탐사 AR asks for nothing beyond the download.

시공간 ships an update every 2 months, 해양미래탐사 AR every 13 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | 시공간 | 해양미래탐사 AR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 13 months |
| Monetization | Free with in-app purchases | — |
| Size | 62 MB | 137 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [saisiot](https://appshunter.io/developer/1566957991) | [AIRAR](https://appshunter.io/developer/1516949211) |

## What reviewers say

### 시공간

[App page](https://appshunter.io/ios/app/id1566957989)

Experience a new reality where you become the protagonist of stories, traveling through time and space. Explore different worlds, observe your surroundings, and create memories that benefit the places you visit. This platform offers an engaging, game-like experience for immersive journeys.

**Highlights:** Time and space travel simulation, Interactive exploration, Story-driven gameplay, Virtual world immersion, Memory creation and conservation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10000 포인트 충전 | $6.99 | one-time |
| 20000 포인트 충전 | $12.99 | one-time |
| 30000 포인트 충전 | $19.99 | one-time |
| 50000 포인트 충전 | $34.99 | one-time |


### 해양미래탐사 AR

[App page](https://appshunter.io/ios/app/ar/id1571424206)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 시공간 free?

시공간 is free to download, with in-app purchases available.

### Is 해양미래탐사 AR free?

해양미래탐사 AR is free to download, with no in-app purchases.

### Do 시공간 or 해양미래탐사 AR have ads?

Neither 시공간 nor 해양미래탐사 AR shows ads.

### Which is updated more often, 시공간 or 해양미래탐사 AR?

시공간 ships an update every 2 months, and 해양미래탐사 AR every 13 months. Most recently, 시공간 was updated on November 3, 2026 and 해양미래탐사 AR on November 3, 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.*