# 리스킷 | LISCIT vs Killer Math

The clearest difference is in-app purchases: Killer Math at none against 리스킷 | LISCIT's 3. Killer Math also leads on update cadence (every 4 days vs every 5 months). 리스킷 | LISCIT's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 리스킷 | LISCIT sells 3 in-app purchases, starting at $1.99 per month. Killer Math asks for nothing beyond the download.

리스킷 | LISCIT ships an update every 5 months, Killer Math every 4 days. The most recent releases landed on October 9, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 리스킷 | LISCIT | Killer Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 4 days** |
| Size | 11 MB | 46 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DiagniaLab Co., Ltd.](https://appshunter.io/developer/1896641725) | [CHUL HYUN LEE](https://appshunter.io/developer/297999549) |

## What reviewers say

### 리스킷 | LISCIT

[App page](https://appshunter.io/ios/app/liscit/id6769228304)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LISCIT Basic Monthly | $1.99 | per month |
| LISCIT Pro Monthly | $11.99 | per month |
| LISCIT Master Monthly | $99.99 | per month |


### 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 리스킷 | LISCIT free?

리스킷 | LISCIT is free to download, with in-app purchases available.

### Is Killer Math free?

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

### Do 리스킷 | LISCIT or Killer Math have ads?

Killer Math shows ads; 리스킷 | LISCIT does not.

### Which is updated more often, 리스킷 | LISCIT or Killer Math?

리스킷 | LISCIT ships an update every 5 months, and Killer Math every 4 days. Most recently, 리스킷 | LISCIT was updated on October 9, 2026 and Killer Math on October 18, 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.*