# 순간영어 vs Pikabook

The clearest difference is update cadence: 순간영어 at every 3 weeks against Pikabook's every 3 months. Pikabook's advantage is iOS requirement (15.6 vs 17.6). 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.

순간영어 ships an update every 3 weeks, Pikabook every 3 months. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 순간영어 | Pikabook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 37 MB | 82 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hong-pil Kim](https://appshunter.io/developer/1744498776) | [Eun Kyung Kim](https://appshunter.io/developer/1811050538) |

## What reviewers say

### 순간영어

[App page](https://appshunter.io/ios/app/id6502156574)

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

**In-app purchases:** none


### Pikabook

[App page](https://appshunter.io/ios/app/pikabook/id6745157690)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 순간영어 free?

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

### Is Pikabook free?

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

### Do 순간영어 or Pikabook have ads?

Neither 순간영어 nor Pikabook shows ads.

### Which is updated more often, 순간영어 or Pikabook?

순간영어 ships an update every 3 weeks, and Pikabook every 3 months. Most recently, 순간영어 was updated on October 10, 2026 and Pikabook on October 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.*