# Knife Up vs SumDash

The clearest difference is ads: Knife Up at none against SumDash's shown. Knife Up also leads on iOS requirement (7.0 vs 15.0). SumDash's advantage is update cadence (every 2 days vs every 6 days). On price, in-app purchases and device support there is nothing between them.

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

Knife Up ships an update every 6 days, SumDash every 2 days. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Knife Up | SumDash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/knife-up/id1353224520/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 days | **Every 2 days** |
| Monetization | Free | — |
| Size | 69 MB | 52 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [晓筠 周](https://appshunter.io/developer/1300048185) | [YT Lab](https://appshunter.io/developer/6774625279) |

## What reviewers say

### Knife Up

[App page](https://appshunter.io/ios/app/knife-up/id1353224520)

Tap to throw knives at a spinning target, aiming to hit it without colliding with existing knives. Progress through levels to test your reflexes and unlock different knife styles.

**Highlights:** Tap-to-throw gameplay, Multiple levels, Variety of flying knives, Pixel art style, Reactivity challenges

**Features:** macOS Compatibility

**In-app purchases:** none


### SumDash

[App page](https://appshunter.io/ios/app/sumdash-math-speed-game/id6785198584)

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

**In-app purchases:** none


## Frequently asked questions

### Is Knife Up free?

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

### Is SumDash free?

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

### Do Knife Up or SumDash have ads?

SumDash shows ads; Knife Up does not.

### Which is updated more often, Knife Up or SumDash?

Knife Up ships an update every 6 days, and SumDash every 2 days. Most recently, Knife Up was updated on October 3, 2026 and SumDash on October 6, 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.*