# 암기고래 vs ChartDraw

The clearest difference is in-app purchases: ChartDraw at none against 암기고래's 10. ChartDraw also leads on update cadence (every 3 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 암기고래 sells 10 one-off in-app purchases. ChartDraw asks for nothing beyond the download.

암기고래 ships an update every 2 weeks, ChartDraw every 3 days. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 암기고래 | ChartDraw |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (86 ratings)](https://appshunter.io/ios/app/id1071024844/reviews)** | — |
| Number of ratings | **86** | — |
| Positive reviews | 88.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Size | 145 MB | 14 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [welearnedu](https://appshunter.io/developer/1071024843) | [Lindy Operation Inc.](https://appshunter.io/developer/6793814445) |

## What reviewers say

### 암기고래

[App page](https://appshunter.io/ios/app/id1071024844)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 암기고래 1개월 구독권 라이트 | $11.99 | one-time |
| 시원스쿨 스페인어 | $47.99 | one-time |
| 암기고래 1년 구독권 | $49.99 | one-time |
| 시원스쿨 오픽 프리패스 | $54.99 | one-time |
| 시원스쿨 텝스 프리패스 | $79.99 | one-time |
| 짠내영어 1년 프리패스 | $94.99 | one-time |
| 시원스쿨 일본어 1년 프리패스 | $99.99 | one-time |
| 시원스쿨 1년 프리패스 | $99.99 | one-time |
| 시원스쿨 2019 기초영어 1년 프리패스 | $99.99 | one-time |
| 시원스쿨 기적의 영어탈출기 100 | $99.99 | one-time |

**What reviewers like**

- 💰 Excellent free content
- 🎧 Audio explanations for words
- 🎶 Engaging music with vocabulary
- 📚 Wide range of languages
- 🎯 Customizable word lists

**What reviewers complain about**

- 🐛 Spelling test errors
- 📉 Difficulty levels too easy for advanced users
- 💻 Excel file upload issues
- 📱 iOS specific bugs (sound in silent mode)
- 🤔 Difficulty levels not matching expectations

**Reported bugs**

- Spelling test incorrect feedback
- Sound plays in silent mode on iPhone
- App crashes when clicking bookmark
- App does not execute on some devices
- Account linking/sign-up connection error

**Requested features**

- More difficult vocabulary for advanced learners
- Easier method for adding custom words
- Ability to upload from device directly
- Add subjective spelling tests (writing definitions)
- Multiple favorite word lists


### ChartDraw

[App page](https://appshunter.io/ios/app/chartdraw/id6793814443)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 암기고래 free?

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

### Is ChartDraw free?

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

### Do 암기고래 or ChartDraw have ads?

Neither 암기고래 nor ChartDraw shows ads.

### Which is updated more often, 암기고래 or ChartDraw?

암기고래 ships an update every 2 weeks, and ChartDraw every 3 days. Most recently, 암기고래 was updated on November 11, 2026 and ChartDraw on October 31, 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.*