# Retro Grid vs Alien Swarm 3

The clearest difference is in-app purchases: Alien Swarm 3 at none against Retro Grid's 3. Retro Grid's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 23 months). On price and device support there is nothing between them.

Both are free to download. Retro Grid sells 3 one-off in-app purchases. Alien Swarm 3 asks for nothing beyond the download.

Retro Grid ships an update every 3 weeks, Alien Swarm 3 every 23 months. The most recent releases landed on September 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Retro Grid | Alien Swarm 3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (34 ratings)](https://appshunter.io/ios/app/retro-grid/id985551497/reviews)** | — |
| Number of ratings | **34** | — |
| Positive reviews | 26.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 23 months |
| Monetization | Free with in-app purchases | — |
| Size | 53 MB | 67 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Gameguru](https://appshunter.io/developer/978359163) | [Galatic Droids](https://appshunter.io/developer/806182439) |

## What reviewers say

### Retro Grid

[App page](https://appshunter.io/ios/app/retro-grid/id985551497)

Experience a fast-paced, endless arcade space shooter with nostalgic 80s graphics and modern one-touch controls. Shoot invaders, dodge enemy fire, and aim for high scores in this retro-inspired galactic adventure.

**Highlights:** Endless gameplay, Retro graphics, One-touch controls, Power-ups & Boosts, High Scores & Achievements

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 coins | $1.99 | one-time |
| 5000 coins | $4.99 | one-time |
| 10000 coins | $6.99 | one-time |


### Alien Swarm 3

[App page](https://appshunter.io/ios/app/alien-swarm-3/id1002907288)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Retro Grid free?

Retro Grid is free to download, with in-app purchases available.

### Is Alien Swarm 3 free?

Alien Swarm 3 is free to download, with no in-app purchases.

### Do Retro Grid or Alien Swarm 3 have ads?

Alien Swarm 3 shows ads; Retro Grid does not.

### Which is updated more often, Retro Grid or Alien Swarm 3?

Retro Grid ships an update every 3 weeks, and Alien Swarm 3 every 23 months. Most recently, Retro Grid was updated on September 25, 2026 and Alien Swarm 3 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.*