# ぜったい覚える！英検５級単語帳 vs 鬼計算

The clearest difference is update cadence: 鬼計算 at every 5 months against ぜったい覚える！英検５級単語帳's every 21 months. On price, ads, 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.

ぜったい覚える！英検５級単語帳 ships an update every 21 months, 鬼計算 every 5 months. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ぜったい覚える！英検５級単語帳 | 鬼計算 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 21 months | **Every 5 months** |
| Size | 70 MB | 12 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ben Walker](https://appshunter.io/developer/385443776) | [masaaki genno](https://appshunter.io/developer/1611455396) |

## What reviewers say

### ぜったい覚える！英検５級単語帳

[App page](https://appshunter.io/ios/app/id1287517706)

**Features:** macOS Compatibility

**In-app purchases:** none


### 鬼計算

[App page](https://appshunter.io/ios/app/hp/id1613670633)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ぜったい覚える！英検５級単語帳 free?

ぜったい覚える！英検５級単語帳 is free to download, with no in-app purchases.

### Is 鬼計算 free?

鬼計算 is free to download, with no in-app purchases.

### Do ぜったい覚える！英検５級単語帳 or 鬼計算 have ads?

Both ぜったい覚える！英検５級単語帳 and 鬼計算 show ads.

### Which is updated more often, ぜったい覚える！英検５級単語帳 or 鬼計算?

ぜったい覚える！英検５級単語帳 ships an update every 21 months, and 鬼計算 every 5 months. Most recently, ぜったい覚える！英検５級単語帳 was updated on October 9, 2026 and 鬼計算 on October 8, 2026.

---

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