# 콕학 vs 찰떡 VOCA

The clearest difference is in-app purchases: 찰떡 VOCA at none against 콕학's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 콕학 sells 4 in-app purchases, starting at $8.99 per month. 찰떡 VOCA asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 9, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 콕학 | 찰떡 VOCA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | Freemium | — |
| Size | 49 MB | 74 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SammyPick Inc.](https://appshunter.io/developer/1552323336) | [boim choi](https://appshunter.io/developer/1862063512) |

## What reviewers say

### 콕학

[App page](https://appshunter.io/ios/app/id6739703874)

This app helps users efficiently memorize educational concepts using a spaced repetition system based on the forgetting curve. It recommends cards for review just before they are forgotten, optimizing study time. Users can track their progress and identify weak areas through data analysis.

**Highlights:** Forgetting curve-based review, Personalized card recommendations, Four-step evaluation system, Individual memory tracking, Data-driven learning analysis, Comprehensive exam coverage

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1개월 구독 | $8.99 | per month |
| 3개월 구독 | $14.99 | per 3 months |
| 6개월 구독 | $24.99 | per 6 months |
| 1년 구독 | $34.99 | per year |


### 찰떡 VOCA

[App page](https://appshunter.io/ios/app/voca/id6774862800)

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

**In-app purchases:** none


## Frequently asked questions

### Is 콕학 free?

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

### Is 찰떡 VOCA free?

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

### Do 콕학 or 찰떡 VOCA have ads?

Neither 콕학 nor 찰떡 VOCA shows ads.

### Which is updated more often, 콕학 or 찰떡 VOCA?

콕학 ships an update every 4 days, and 찰떡 VOCA every 4 days. Most recently, 콕학 was updated on October 9, 2026 and 찰떡 VOCA on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*