# 해커스 MP3 플레이어 vs 암기고래

The clearest difference is review sentiment: 암기고래 at 88% against 해커스 MP3 플레이어's 44%. 암기고래 also leads on rating (4.7 vs 1.6) and ratings volume (86 vs 19). 해커스 MP3 플레이어's advantage is in-app purchases (none vs 12). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 암기고래 sells 12 one-off in-app purchases. 해커스 MP3 플레이어 asks for nothing beyond the download.

암기고래 holds the better App Store score, 4.7 against 1.6. Both are backed by a comparable volume of ratings — 19 and 86 respectively. Written reviews point the same way: 44% of 해커스 MP3 플레이어's written reviews are positive against 88% of 암기고래's.

해커스 MP3 플레이어 ships an update every 3 weeks, 암기고래 every 2 weeks. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 해커스 MP3 플레이어 | 암기고래 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (19 ratings)](https://appshunter.io/ios/app/mp3/id531669642/reviews) | **[4.7 (86 ratings)](https://appshunter.io/ios/app/id1071024844/reviews)** |
| Number of ratings | 19 | **86** |
| Positive reviews | 44.1% of reviews | **88.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 54 MB | 145 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Champ Study Institute](https://appshunter.io/developer/466747997) | [welearnedu](https://appshunter.io/developer/1071024843) |

## What reviewers say

### 해커스 MP3 플레이어

[App page](https://appshunter.io/ios/app/mp3/id531669642)

Access a wide range of free and paid educational content for learning. Stream or download lessons using your Hackers integrated account. Requires iOS 15.0 or later.

**Highlights:** Stream and download educational content, Free and paid content options, Integrated Hackers account, Push notifications for learning alarms, Photo/video attachment for feedback, Voice recording for feedback

**Features:** Vision Pro support

**In-app purchases:** none


### 암기고래

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

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 암기고래 1개월 구독권 라이트 | $11.99 | one-time |
| 시원스쿨 스페인어 | $47.99 | one-time |
| 시원스쿨 지텔프 프리패스 | $47.99 | one-time |
| 암기고래 1년 구독권 | $49.99 | one-time |
| 시원스쿨 토익스피킹 프리패스 | $54.99 | 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


## Frequently asked questions

### Is 해커스 MP3 플레이어 free?

해커스 MP3 플레이어 is free to download, with no in-app purchases.

### Is 암기고래 free?

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

### Which has better reviews, 해커스 MP3 플레이어 or 암기고래?

암기고래 is rated higher. 해커스 MP3 플레이어 averages 1.6 out of 5 from 19 ratings, while 암기고래 averages 4.7 from 86 ratings.

### Do 해커스 MP3 플레이어 or 암기고래 have ads?

Neither 해커스 MP3 플레이어 nor 암기고래 shows ads.

### Which is updated more often, 해커스 MP3 플레이어 or 암기고래?

해커스 MP3 플레이어 ships an update every 3 weeks, and 암기고래 every 2 weeks. Most recently, 해커스 MP3 플레이어 was updated on October 17, 2026 and 암기고래 on October 16, 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.*