# 暗算Blitz vs ガチ2桁九九

The clearest difference is ads: ガチ2桁九九 at none against 暗算Blitz's shown. ガチ2桁九九 also leads on iOS requirement (15.0 vs 17.6). 暗算Blitz's advantage is update cadence (daily vs every 3 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 暗算Blitz sells 1 one-off in-app purchase and ガチ2桁九九 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

暗算Blitz ships an update daily, ガチ2桁九九 every 3 months. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 暗算Blitz | ガチ2桁九九 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 3 months |
| Size | 54 MB | 24 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toshihide KAWAI](https://appshunter.io/developer/1598098272) | [kotobaz](https://appshunter.io/developer/1634727152) |

## What reviewers say

### 暗算Blitz

[App page](https://appshunter.io/ios/app/blitz/id6741730652)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム・ユーザー | $14.99 | one-time |


### ガチ2桁九九

[App page](https://appshunter.io/ios/app/2/id6777702804)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム解放 | $2.99 | one-time |


## Frequently asked questions

### Is 暗算Blitz free?

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

### Is ガチ2桁九九 free?

ガチ2桁九九 is free to download, with in-app purchases available.

### Do 暗算Blitz or ガチ2桁九九 have ads?

暗算Blitz shows ads; ガチ2桁九九 does not.

### Which is updated more often, 暗算Blitz or ガチ2桁九九?

暗算Blitz ships an update daily, and ガチ2桁九九 every 3 months. Most recently, 暗算Blitz was updated on October 3, 2026 and ガチ2桁九九 on September 30, 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.*