# Retro vs Knife Rain

The clearest difference is update cadence: Retro at daily against Knife Rain's weekly. On price, ads, 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.

Retro ships an update daily, Knife Rain weekly. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Retro | Knife Rain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/retro-space-attack/id6738591809/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Weekly |
| Monetization | Ad-supported | — |
| Size | 163 MB | 38 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Batuhan Yildirim](https://appshunter.io/developer/1780110016) | [famobi](https://appshunter.io/developer/933760663) |

## What reviewers say

### Retro

[App page](https://appshunter.io/ios/app/retro-space-attack/id6738591809)

Engage in an arcade-style space shooter with waves of enemies and challenging bosses. Unlock upgrades and master multiple unique ships with stunning pixel art and fast-paced gameplay. It's easy to learn but difficult to master.

**Highlights:** Arcade-style space shooter, Battle waves of enemies, Face epic bosses, Unlock powerful upgrades, Stunning pixel art, Multiple unique ships

**Features:** macOS Compatibility

**In-app purchases:** none


### Knife Rain

[App page](https://appshunter.io/ios/app/knife-rain-master-throw/id6740991951)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Retro free?

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

### Is Knife Rain free?

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

### Do Retro or Knife Rain have ads?

Both Retro and Knife Rain show ads.

### Which is updated more often, Retro or Knife Rain?

Retro ships an update daily, and Knife Rain weekly. Most recently, Retro was updated on October 12, 2026 and Knife Rain on October 4, 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.*