# Korean Checker vs HTMLens

The clearest difference is update cadence: HTMLens at every 3 days against Korean Checker's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Korean Checker sells 2 in-app purchases, starting at $3.99 per month and HTMLens sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Korean Checker ships an update every 5 months, HTMLens every 3 days. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Korean Checker | HTMLens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (54 ratings)](https://appshunter.io/ios/app/korean-checker/id1476172458/reviews)** | — |
| Number of ratings | **54** | — |
| Positive reviews | 52.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 12 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [Hyunwoo Kim](https://appshunter.io/developer/1709269004) | [Jaewook Oh](https://appshunter.io/developer/6815076388) |

## What reviewers say

### Korean Checker

[App page](https://appshunter.io/ios/app/korean-checker/id1476172458)

Correct spelling and spacing errors in Korean sentences. This app offers AI-powered sentence transformation, a history of corrections, and easy sharing of the results. It helps users identify and learn from common mistakes.

**Highlights:** Correct spelling and spacing, AI sentence transformation, Copy corrected sentences, Share easily, Correction history, Check frequently misspelled words

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $3.99 | per month |
| Annual subscription | $19.99 | per year |


### HTMLens

[App page](https://appshunter.io/ios/app/htmlens-html-viewer-and-pdf/id6816348199)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


## Frequently asked questions

### Is Korean Checker free?

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

### Is HTMLens free?

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

### Do Korean Checker or HTMLens have ads?

Both Korean Checker and HTMLens show ads.

### Which is updated more often, Korean Checker or HTMLens?

Korean Checker ships an update every 5 months, and HTMLens every 3 days. Most recently, Korean Checker was updated on October 24, 2026 and HTMLens on October 22, 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.*