# 원서읽는 리도보카 vs 홀링

The clearest difference is review sentiment: 홀링 at 83% against 원서읽는 리도보카's 45%. 홀링 also leads on in-app purchases (none vs 3). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. 원서읽는 리도보카 sells 3 one-off in-app purchases. 홀링 asks for nothing beyond the download.

원서읽는 리도보카 ships an update every 6 weeks, 홀링 monthly. The most recent releases landed on September 26, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 원서읽는 리도보카 | 홀링 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id1470191217/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 45.0% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 85 MB | 25 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jisik Corp.](https://appshunter.io/developer/1550050116) | [MATHOLIC Inc.](https://appshunter.io/developer/1209890405) |

## What reviewers say

### 원서읽는 리도보카

[App page](https://appshunter.io/ios/app/id1470191217)

This app offers unlimited vocabulary learning for over 7,000 original English books. It extracts core words from popular series and bestsellers, presenting them in the order they appear in the text. Learn vocabulary visually without direct translation for faster reading comprehension.

**Highlights:** Unlimited vocabulary learning, 7,000+ original English books, Words extracted from popular series, Visual learning aids, Vocabulary in book order, Shadowing service for pronunciation

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 마케터쿠폰 100장 | $7.99 | one-time |
| 1년 자유이용쿠폰 | $48.99 | one-time |
| 2년 자유이용쿠폰 | $99.99 | one-time |


### 홀링

[App page](https://appshunter.io/ios/app/id6478107698)

This app offers a comprehensive elementary math learning experience, combining video lectures, problem-solving, error notes, and AI-powered analysis. It features a new user interface designed for easier and more enjoyable exploration of math concepts.

**Highlights:** Video lectures, Problem solving, Error notes, AI learning analysis, Interactive math island exploration, Tablet PC support

**In-app purchases:** none


## Frequently asked questions

### Is 원서읽는 리도보카 free?

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

### Is 홀링 free?

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

### Do 원서읽는 리도보카 or 홀링 have ads?

Neither 원서읽는 리도보카 nor 홀링 shows ads.

### Which is updated more often, 원서읽는 리도보카 or 홀링?

원서읽는 리도보카 ships an update every 6 weeks, and 홀링 monthly. Most recently, 원서읽는 리도보카 was updated on September 26, 2026 and 홀링 on September 18, 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.*