# 시원스쿨랩 토익 기출 보카 vs K

The clearest difference is review sentiment: K at 100% against 시원스쿨랩 토익 기출 보카's 75%. K also leads on update cadence (every 6 weeks vs every 3 months). 시원스쿨랩 토익 기출 보카's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 시원스쿨랩 토익 기출 보카 sells 2 one-off in-app purchases and K sells 1 in-app purchase, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

시원스쿨랩 토익 기출 보카 ships an update every 3 months, K every 6 weeks. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | 시원스쿨랩 토익 기출 보카 | K |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 67 MB | 216 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siwonschool](https://appshunter.io/developer/473647838) | [Siwonschool](https://appshunter.io/developer/473647838) |

## What reviewers say

### 시원스쿨랩 토익 기출 보카

[App page](https://appshunter.io/ios/app/id1449455281)

Learn essential TOEIC vocabulary with this app, featuring content from two books. It analyzes past exam data to provide high-frequency words and offers various learning modes, quizzes, and pronunciation guides.

**Highlights:** Comprehensive TOEIC vocabulary from two books, Analysis of past exam data for word selection, 30-day study plans for beginners and advanced learners, Card-style learning with touch interface, Memorization and advanced modes, Native speaker audio and Korean pronunciation guides, Quizzes and personalized word lists, Practice tests and explanation lectures

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 빅토익 VOCA Basic 학습권 | $2.99 | one-time |
| 빅토익 VOCA 학습권 | $2.99 | one-time |


### K

[App page](https://appshunter.io/ios/app/k-readingbook/id6469670688)

This app uses AI to assess Korean language and TOPIK exam readiness, providing personalized reading materials to boost vocabulary and comprehension. It offers practice tests and evaluations to track progress and improve Korean proficiency.

**Highlights:** AI-driven Korean language assessment, Customized reading material recommendations, TOPIK level 1-6 vocabulary focus, Diverse reading materials (literature to modern culture), TOPIK-style level tests and evaluations, Real-time Korean level and skill tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One month | $5.99 | per month |


## Frequently asked questions

### Is 시원스쿨랩 토익 기출 보카 free?

시원스쿨랩 토익 기출 보카 is free to download, with in-app purchases available.

### Is K free?

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

### Do 시원스쿨랩 토익 기출 보카 or K have ads?

Neither 시원스쿨랩 토익 기출 보카 nor K shows ads.

### Which is updated more often, 시원스쿨랩 토익 기출 보카 or K?

시원스쿨랩 토익 기출 보카 ships an update every 3 months, and K every 6 weeks. Most recently, 시원스쿨랩 토익 기출 보카 was updated on November 2, 2026 and K on November 11, 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.*