# NOVA, 公式アプリ vs 【公式】23（ニジュウサン）

NOVA, 公式アプリ and 【公式】23（ニジュウサン） 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 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | NOVA, 公式アプリ | 【公式】23（ニジュウサン） |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | Every 38 months |
| Size | 37 MB | 16 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [HAYATO KOSHIKA](https://appshunter.io/developer/1547745343) | [FUMIHIKO FUKANO](https://appshunter.io/developer/1610987057) |

## What reviewers say

### NOVA, 公式アプリ

[App page](https://appshunter.io/ios/app/nova/id1547745341)

**In-app purchases:** none


### 【公式】23（ニジュウサン）

[App page](https://appshunter.io/ios/app/23/id1610987055)

**In-app purchases:** none


## Frequently asked questions

### Is NOVA, 公式アプリ free?

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

### Is 【公式】23（ニジュウサン） free?

【公式】23（ニジュウサン） is free to download, with no in-app purchases.

### Do NOVA, 公式アプリ or 【公式】23（ニジュウサン） have ads?

Neither NOVA, 公式アプリ nor 【公式】23（ニジュウサン） shows ads.

### Which is updated more often, NOVA, 公式アプリ or 【公式】23（ニジュウサン）?

NOVA, 公式アプリ ships an update every 38 months, and 【公式】23（ニジュウサン） every 38 months. Most recently, NOVA, 公式アプリ was updated on October 6, 2026 and 【公式】23（ニジュウサン） on October 25, 2026.

---

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