# ぜったい覚える！英検４級単語帳 vs VietLoop

The clearest difference is in-app purchases: ぜったい覚える！英検４級単語帳 at none against VietLoop's 1. VietLoop's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. VietLoop sells 1 one-off in-app purchase. ぜったい覚える！英検４級単語帳 asks for nothing beyond the download.

## The numbers

| Metric | ぜったい覚える！英検４級単語帳 | VietLoop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 21 months | — |
| Size | 70 MB | 23 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ben Walker](https://appshunter.io/developer/385443776) | [kotobaz](https://appshunter.io/developer/1634727152) |

## What reviewers say

### ぜったい覚える！英検４級単語帳

[App page](https://appshunter.io/ios/app/id1289069493)

**Features:** macOS Compatibility

**In-app purchases:** none


### VietLoop

[App page](https://appshunter.io/ios/app/vietloop/id6780567863)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VietLoop Premium | $4.99 | one-time |


## Frequently asked questions

### Is ぜったい覚える！英検４級単語帳 free?

ぜったい覚える！英検４級単語帳 is free to download, with no in-app purchases.

### Is VietLoop free?

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

### Do ぜったい覚える！英検４級単語帳 or VietLoop have ads?

ぜったい覚える！英検４級単語帳 shows ads; VietLoop does not.

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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.*