# ぜったい覚える！英検準１級単語帳 vs Voisync

The clearest difference is ads: Voisync at none against ぜったい覚える！英検準１級単語帳's shown. ぜったい覚える！英検準１級単語帳's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.4). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ぜったい覚える！英検準１級単語帳 | Voisync |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | — |
| Size | 70 MB | 4 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ben Walker](https://appshunter.io/developer/385443776) | [Komori Yuta](https://appshunter.io/developer/1086426477) |

## What reviewers say

### ぜったい覚える！英検準１級単語帳

[App page](https://appshunter.io/ios/app/id1294983619)

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

**In-app purchases:** none


### Voisync

[App page](https://appshunter.io/ios/app/voisync/id6747451291)

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

**In-app purchases:** none


## Frequently asked questions

### Is ぜったい覚える！英検準１級単語帳 free?

ぜったい覚える！英検準１級単語帳 is free to download, with no in-app purchases.

### Is Voisync free?

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

### Do ぜったい覚える！英検準１級単語帳 or Voisync have ads?

ぜったい覚える！英検準１級単語帳 shows ads; Voisync 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.*