# HAI 수능 한국사 vs Killer Math

The clearest difference is ads: HAI 수능 한국사 at none against Killer Math's shown. Killer Math's advantage is update cadence (every 4 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.

HAI 수능 한국사 ships an update every 2 months, Killer Math every 4 days. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | HAI 수능 한국사 | Killer Math |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 21 MB | 46 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Educere](https://appshunter.io/developer/1698282542) | [CHUL HYUN LEE](https://appshunter.io/developer/297999549) |

## What reviewers say

### HAI 수능 한국사

[App page](https://appshunter.io/ios/app/hai/id6468364891)

Prepare for the Korean history college entrance exam with personalized learning. Analyze your weaknesses through past questions and receive tailored recommendations for efficient study. Create custom problem sets and review incorrect answers for last-minute preparation.

**Highlights:** Personalized learning recommendations, Analysis of past exam questions, Customizable problem sets, Mock exam mode, Incorrect answer notebook

**Features:** Vision Pro support

**In-app purchases:** none


### Killer Math

[App page](https://appshunter.io/ios/app/killer-math/id6785559161)

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

**In-app purchases:** none


## Frequently asked questions

### Is HAI 수능 한국사 free?

HAI 수능 한국사 is free to download, with no in-app purchases.

### Is Killer Math free?

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

### Do HAI 수능 한국사 or Killer Math have ads?

Killer Math shows ads; HAI 수능 한국사 does not.

### Which is updated more often, HAI 수능 한국사 or Killer Math?

HAI 수능 한국사 ships an update every 2 months, and Killer Math every 4 days. Most recently, HAI 수능 한국사 was updated on October 4, 2026 and Killer Math on October 1, 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.*