# Planet Invaders vs Invaders Retro

The clearest difference is price: Planet Invaders at Free against Invaders Retro's $0.99. Planet Invaders also leads on update cadence (every 2 days vs weekly) and iOS requirement (7.0 vs 14.2). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Planet Invaders is free to download; Invaders Retro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Planet Invaders ships an update every 2 days, Invaders Retro weekly. Both last shipped on September 9, 2026.

## The numbers

| Metric | Planet Invaders | Invaders Retro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/planet-invaders-space-invaders-on-steroids/id1165347749/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | **Free** | Paid |
| Size | 47 MB | 3 MB |
| Requires iOS | **7.0** | 14.2 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Cotton.sg Pte. Ltd.](https://appshunter.io/developer/1088265272) | [Justin Ngan](https://appshunter.io/developer/1467305957) |

## What reviewers say

### Planet Invaders

[App page](https://appshunter.io/ios/app/planet-invaders-space-invaders-on-steroids/id1165347749)

Defend your planet from relentless alien waves in this arcade shooter. Unlock new players and powers to blast enemies into cosmic fireworks. Enjoy classic single-player or team up with up to 4 players on a single device in co-op mode.

**Highlights:** Endless waves of enemies, Unlockable players and powers, Classic single-player mode, 4-player co-op on one device, Cosmic fireworks visual effects

**Features:** Vision Pro support

**In-app purchases:** none


### Invaders Retro

[App page](https://appshunter.io/ios/app/invaders-retro/id1544672448)

Defend Earth from relentless alien waves in this retro-inspired shooter. Discover hidden scoring mechanics as you battle through increasingly challenging levels to save the planet.

**Highlights:** Alien invasion gameplay, Wave-based challenges, Hidden scoring system, Retro graphics, Planet defense

**Features:** Game Controller support

**In-app purchases:** none


## Frequently asked questions

### Is Planet Invaders free?

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

### Is Invaders Retro free?

Invaders Retro costs $0.99, with no in-app purchases.

### Do Planet Invaders or Invaders Retro have ads?

Neither Planet Invaders nor Invaders Retro shows ads.

### Which is updated more often, Planet Invaders or Invaders Retro?

Planet Invaders ships an update every 2 days, and Invaders Retro weekly. Most recently, Planet Invaders was updated on September 9, 2026 and Invaders Retro on September 9, 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.*