# KNOU 프라임칼리지 허브대학 vs 암카 상공한자

The clearest difference is price: KNOU 프라임칼리지 허브대학 at Free against 암카 상공한자's $2.99. KNOU 프라임칼리지 허브대학 also leads on iOS requirement (11.0 vs 15.6). 암카 상공한자's advantage is update cadence (weekly vs every 7 months). On ads, in-app purchases and device support there is nothing between them.

KNOU 프라임칼리지 허브대학 is free to download; 암카 상공한자 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

KNOU 프라임칼리지 허브대학 ships an update every 7 months, 암카 상공한자 weekly. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | KNOU 프라임칼리지 허브대학 | 암카 상공한자 |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | — | Paid |
| Size | 10 MB | 109 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Korea National Open University](https://appshunter.io/developer/504499080) | [TheOne Lab](https://appshunter.io/developer/1623950270) |

## What reviewers say

### KNOU 프라임칼리지 허브대학

[App page](https://appshunter.io/ios/app/knou/id1078527083)

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

**In-app purchases:** none


### 암카 상공한자

[App page](https://appshunter.io/ios/app/3/id6502834553)

This app uses the Leitner system to help users memorize Chinese characters efficiently. It covers all 1800 characters for the 3rd grade certification, with example words and a personal vocabulary list for effective review.

**Highlights:** Leitner learning system, 1800 characters for 3rd grade, Includes example words, Personal vocabulary list, Chapter-based learning

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

**In-app purchases:** none


## Frequently asked questions

### Is KNOU 프라임칼리지 허브대학 free?

KNOU 프라임칼리지 허브대학 is free to download, with no in-app purchases.

### Is 암카 상공한자 free?

암카 상공한자 costs $2.99, with no in-app purchases.

### Do KNOU 프라임칼리지 허브대학 or 암카 상공한자 have ads?

Neither KNOU 프라임칼리지 허브대학 nor 암카 상공한자 shows ads.

### Which is updated more often, KNOU 프라임칼리지 허브대학 or 암카 상공한자?

KNOU 프라임칼리지 허브대학 ships an update every 7 months, and 암카 상공한자 weekly. Most recently, KNOU 프라임칼리지 허브대학 was updated on October 7, 2026 and 암카 상공한자 on October 14, 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.*