# OLK vs Teacher Moon

The clearest difference is ads: OLK at none against Teacher Moon's shown. Teacher Moon's advantage is update cadence (every 3 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OLK ships an update every 2 months, Teacher Moon every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | OLK | Teacher Moon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/olk-learn-korean/id6760276977/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 23 MB | 239 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Olabisi aruna](https://appshunter.io/developer/1883594199) | [SEONGCHEOL MUN](https://appshunter.io/developer/6779957234) |

## What reviewers say

### OLK

[App page](https://appshunter.io/ios/app/olk-learn-korean/id6760276977)

Master Korean with a structured, free app designed for beginners. Learn the alphabet, build vocabulary with over 1,300 verbs, and understand grammar through clear explanations and practical examples. Practice reading and test your knowledge with engaging quizzes.

**Highlights:** Learn Hangul (Korean alphabet), 1,300+ Korean verbs with usage hints, Clear grammar explanations with examples, Guided reading passages, Vocabulary flashcards and 'My Words' feature, Quizzes for Hangul, verbs, and grammar, Audio pronunciations for Korean words

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

**In-app purchases:** none


### Teacher Moon

[App page](https://appshunter.io/ios/app/teacher-moon-learn-languages/id6779957232)

**In-app purchases:** none


## Frequently asked questions

### Is OLK free?

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

### Is Teacher Moon free?

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

### Do OLK or Teacher Moon have ads?

Teacher Moon shows ads; OLK does not.

### Which is updated more often, OLK or Teacher Moon?

OLK ships an update every 2 months, and Teacher Moon every 3 days. Most recently, OLK was updated on October 31, 2026 and Teacher Moon on October 31, 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.*