# KoreanSense vs OptimalChinese

The clearest difference is iOS requirement: OptimalChinese at 15.0 against KoreanSense's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. KoreanSense sells 2 one-off in-app purchases and OptimalChinese sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | KoreanSense | OptimalChinese |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Size | 199 MB | 12 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Man Jun Choi](https://appshunter.io/developer/1896529150) | [Lucas Costagliola](https://appshunter.io/developer/6806748067) |

## What reviewers say

### KoreanSense

[App page](https://appshunter.io/ios/app/koreansense/id6768000199)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KoreanSense Plus | $49.99 | one-time |
| KoreanSense Plus | $69.99 | one-time |


### OptimalChinese

[App page](https://appshunter.io/ios/app/optimalchinese/id6806748065)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $12.99 | per month |
| Yearly | $79.99 | per year |


## Frequently asked questions

### Is KoreanSense free?

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

### Is OptimalChinese free?

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

### Do KoreanSense or OptimalChinese have ads?

Neither KoreanSense nor OptimalChinese shows ads.

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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.*