# CRYSTAL　公式アプリ vs いづみ乃部屋

CRYSTAL　公式アプリ and いづみ乃部屋 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.

Both ship on a similar rhythm, roughly every 38 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | CRYSTAL　公式アプリ | いづみ乃部屋 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | Every 38 months |
| Size | 15 MB | 33 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SATOKO OGURA](https://appshunter.io/developer/1434555933) | [IZUMI FUCHIGAMI](https://appshunter.io/developer/1562934084) |

## What reviewers say

### CRYSTAL　公式アプリ

[App page](https://appshunter.io/ios/app/crystal/id1434555934)

**In-app purchases:** none


### いづみ乃部屋

[App page](https://appshunter.io/ios/app/id1562934082)

**In-app purchases:** none


## Frequently asked questions

### Is CRYSTAL　公式アプリ free?

CRYSTAL　公式アプリ is free to download, with no in-app purchases.

### Is いづみ乃部屋 free?

いづみ乃部屋 is free to download, with no in-app purchases.

### Do CRYSTAL　公式アプリ or いづみ乃部屋 have ads?

Neither CRYSTAL　公式アプリ nor いづみ乃部屋 shows ads.

### Which is updated more often, CRYSTAL　公式アプリ or いづみ乃部屋?

CRYSTAL　公式アプリ ships an update every 38 months, and いづみ乃部屋 every 38 months. Most recently, CRYSTAL　公式アプリ was updated on October 26, 2026 and いづみ乃部屋 on October 27, 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.*