# Slap Stack! vs VOID RUSH

The clearest difference is in-app purchases: Slap Stack! at none against VOID RUSH's 2. Slap Stack! also leads on iOS requirement (12.0 vs 16.0). VOID RUSH's advantage is update cadence (every 10 days vs every 16 months). On price, ads and device support there is nothing between them.

Both are free to download. VOID RUSH sells 2 in-app purchases, starting at $2.99 per month. Slap Stack! asks for nothing beyond the download.

Slap Stack! ships an update every 16 months, VOID RUSH every 10 days. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Slap Stack! | VOID RUSH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 16 months | **Every 10 days** |
| Size | 72 MB | 29 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [omer cetin](https://appshunter.io/developer/1584332419) | [Ismail Tever](https://appshunter.io/developer/1851228261) |

## What reviewers say

### Slap Stack!

[App page](https://appshunter.io/ios/app/slap-stack/id1589447649)

**Features:** macOS Compatibility

**In-app purchases:** none


### VOID RUSH

[App page](https://appshunter.io/ios/app/void-rush-space-runner/id6756622197)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $12.99 | per year |


## Frequently asked questions

### Is Slap Stack! free?

Slap Stack! is free to download, with no in-app purchases.

### Is VOID RUSH free?

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

### Do Slap Stack! or VOID RUSH have ads?

Both Slap Stack! and VOID RUSH show ads.

### Which is updated more often, Slap Stack! or VOID RUSH?

Slap Stack! ships an update every 16 months, and VOID RUSH every 10 days. Most recently, Slap Stack! was updated on October 15, 2026 and VOID RUSH on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*