# 암기고래 vs 해커스 그림보카

The clearest difference is ratings volume: 암기고래 at 86 against 해커스 그림보카's 5. 암기고래 also leads on update cadence (every 2 weeks vs every 4 weeks). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. 암기고래 sells 10 one-off in-app purchases and 해커스 그림보카 sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for 암기고래 against 4.6 for 해커스 그림보카. That said, the two scores are not equally well evidenced: 암기고래 has 86 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 88% of 암기고래's written reviews are positive against 87% of 해커스 그림보카's.

암기고래 ships an update every 2 weeks, 해커스 그림보카 every 4 weeks. Both last shipped on November 2, 2026.

## The numbers

| Metric | 암기고래 | 해커스 그림보카 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (86 ratings)](https://appshunter.io/ios/app/id1071024844/reviews)** | [4.6 (5 ratings)](https://appshunter.io/ios/app/6/id1378161207/reviews) |
| Number of ratings | **86** | 5 |
| Positive reviews | **88.3% of reviews** | 86.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 145 MB | 63 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [welearnedu](https://appshunter.io/developer/1071024843) | [Champ Study Institute](https://appshunter.io/developer/466747997) |

## 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


### 해커스 그림보카

[App page](https://appshunter.io/ios/app/6/id1378161207)

Learn English vocabulary effectively with visual aids and native speaker audio. Customize your learning with topic-based and level-specific word lists, and track your progress with smart review features and quizzes. Ideal for all English learners, from beginners to advanced.

**Highlights:** Visual association learning, Native speaker audio pronunciation, Topic and level-based word lists, Personalized vocabulary management, Progress tracking and quizzes, Customizable learning pace

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 초등영어 평생소장 | $11.99 | one-time |
| 왕초보 영단어 | $11.99 | one-time |
| 영어회화 평생소장 | $11.99 | one-time |
| 토익 기초+중급+실전 단어 평생소장 | $11.99 | one-time |
| 공무원 시험 필수 영단어 | $11.99 | one-time |
| 기초영어+초등영어+영어회화 | $17.99 | one-time |


## Frequently asked questions

### Is 암기고래 free?

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

### Is 해커스 그림보카 free?

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

### Which has better reviews, 암기고래 or 해커스 그림보카?

암기고래 is rated higher. 암기고래 averages 4.7 out of 5 from 86 ratings, while 해커스 그림보카 averages 4.6 from 5 ratings.

### Do 암기고래 or 해커스 그림보카 have ads?

Neither 암기고래 nor 해커스 그림보카 shows ads.

### Which is updated more often, 암기고래 or 해커스 그림보카?

암기고래 ships an update every 2 weeks, and 해커스 그림보카 every 4 weeks. Most recently, 암기고래 was updated on November 2, 2026 and 해커스 그림보카 on November 2, 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.*