# ときのそら オフィシャルファンクラブ vs Matrix Calc Delta

The clearest difference is ads: ときのそら オフィシャルファンクラブ at none against Matrix Calc Delta's shown. ときのそら オフィシャルファンクラブ also leads on update cadence (monthly vs every 21 months). Matrix Calc Delta's advantage is iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

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

ときのそら オフィシャルファンクラブ ships an update monthly, Matrix Calc Delta every 21 months. Both last shipped on October 13, 2026.

## The numbers

| Metric | ときのそら オフィシャルファンクラブ | Matrix Calc Delta |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 21 months |
| Size | 52 MB | 20 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [DWANGO Co., Ltd.](https://appshunter.io/developer/297539595) | [Sae Ueno](https://appshunter.io/developer/1598709865) |

## What reviewers say

### ときのそら オフィシャルファンクラブ

[App page](https://appshunter.io/ios/app/id6446238311)

**Features:** macOS Compatibility

**In-app purchases:** none


### Matrix Calc Delta

[App page](https://appshunter.io/ios/app/matrix-calc-delta/id6550892892)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ときのそら オフィシャルファンクラブ free?

ときのそら オフィシャルファンクラブ is free to download, with no in-app purchases.

### Is Matrix Calc Delta free?

Matrix Calc Delta is free to download, with no in-app purchases.

### Do ときのそら オフィシャルファンクラブ or Matrix Calc Delta have ads?

Matrix Calc Delta shows ads; ときのそら オフィシャルファンクラブ does not.

### Which is updated more often, ときのそら オフィシャルファンクラブ or Matrix Calc Delta?

ときのそら オフィシャルファンクラブ ships an update monthly, and Matrix Calc Delta every 21 months. Most recently, ときのそら オフィシャルファンクラブ was updated on October 13, 2026 and Matrix Calc Delta on October 13, 2026.

---

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