# 2Digit Multiplication Lite vs Cert Rogue 知識のダンジョン

The clearest difference is ads: Cert Rogue 知識のダンジョン at none against 2Digit Multiplication Lite's shown. Cert Rogue 知識のダンジョン also leads on update cadence (every 3 weeks vs every 10 months) and iOS requirement (13.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 2Digit Multiplication Lite sells 1 one-off in-app purchase and Cert Rogue 知識のダンジョン sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

2Digit Multiplication Lite ships an update every 10 months, Cert Rogue 知識のダンジョン every 3 weeks. The most recent releases landed on October 3, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | 2Digit Multiplication Lite | Cert Rogue 知識のダンジョン |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/2digit-multiplication-lite/id400869854/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 26 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [TAKESHI TAMEGAI](https://appshunter.io/developer/1896333216) |

## What reviewers say

### 2Digit Multiplication Lite

[App page](https://appshunter.io/ios/app/2digit-multiplication-lite/id400869854)

Master double-digit multiplication with this educational app. It offers unique methods to quickly solve complex problems, helping users improve their math skills through practice and exercise.

**Highlights:** Learn double-digit multiplication methods, Practice solving multiplication problems, Quick calculation techniques, Exercise math skills, Improve speed and accuracy

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add Other Methods and Remove Ads | $1.99 | one-time |


### Cert Rogue 知識のダンジョン

[App page](https://appshunter.io/ios/app/cert-rogue/id6772684520)

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 世界史ダンジョン(歴検3級) | $1.99 | one-time |
| ITパスポート ダンジョン | $1.99 | one-time |
| 麻雀ダンジョン(役・点数計算) | $1.99 | one-time |
| AI-102 ダンジョン | $1.99 | one-time |
| 世界遺産検定2級 ダンジョン | $1.99 | one-time |
| 世界遺産検定1級 ダンジョン | $1.99 | one-time |
| 世界史ダンジョン(歴検2級) | $1.99 | one-time |
| 競馬データダンジョン | $1.99 | one-time |


## Frequently asked questions

### Is 2Digit Multiplication Lite free?

2Digit Multiplication Lite is free to download, with in-app purchases available.

### Is Cert Rogue 知識のダンジョン free?

Cert Rogue 知識のダンジョン is free to download, with in-app purchases available.

### Do 2Digit Multiplication Lite or Cert Rogue 知識のダンジョン have ads?

2Digit Multiplication Lite shows ads; Cert Rogue 知識のダンジョン does not.

### Which is updated more often, 2Digit Multiplication Lite or Cert Rogue 知識のダンジョン?

2Digit Multiplication Lite ships an update every 10 months, and Cert Rogue 知識のダンジョン every 3 weeks. Most recently, 2Digit Multiplication Lite was updated on October 3, 2026 and Cert Rogue 知識のダンジョン on September 25, 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.*