# QB説明　２年　時こくと時間 vs GCD LCM Calculation

The clearest difference is price: GCD LCM Calculation at Free against QB説明　２年　時こくと時間's $5.99. GCD LCM Calculation also leads on update cadence (every 2 months vs every 34 months) and device support (3 vs 1). QB説明　２年　時こくと時間's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.0). On in-app purchases there is nothing between them.

GCD LCM Calculation is free to download; QB説明　２年　時こくと時間 costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

QB説明　２年　時こくと時間 ships an update every 34 months, GCD LCM Calculation every 2 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | QB説明　２年　時こくと時間 | GCD LCM Calculation |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 34 months | **Every 2 months** |
| Size | 9 MB | 14 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Suzuki Educational Software Co.,Ltd.](https://appshunter.io/developer/585512975) | [Kazuhisa Kobayashi](https://appshunter.io/developer/1580882000) |

## What reviewers say

### QB説明　２年　時こくと時間

[App page](https://appshunter.io/ios/app/qb/id1192631664)

**In-app purchases:** none


### GCD LCM Calculation

[App page](https://appshunter.io/ios/app/gcd-lcm-calculation/id6621190448)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QB説明　２年　時こくと時間 free?

QB説明　２年　時こくと時間 costs $5.99, with no in-app purchases.

### Is GCD LCM Calculation free?

GCD LCM Calculation is free to download, with no in-app purchases.

### Do QB説明　２年　時こくと時間 or GCD LCM Calculation have ads?

GCD LCM Calculation shows ads; QB説明　２年　時こくと時間 does not.

### Which is updated more often, QB説明　２年　時こくと時間 or GCD LCM Calculation?

QB説明　２年　時こくと時間 ships an update every 34 months, and GCD LCM Calculation every 2 months. Most recently, QB説明　２年　時こくと時間 was updated on November 2, 2026 and GCD LCM Calculation on November 4, 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.*