# Rocket Invaders vs Myco Citadel

The clearest difference is in-app purchases: Myco Citadel at none against Rocket Invaders's 8. Myco Citadel also leads on ads (none vs shown). Rocket Invaders's advantage is update cadence (every 9 days vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Rocket Invaders sells 8 one-off in-app purchases. Myco Citadel asks for nothing beyond the download.

Rocket Invaders ships an update every 9 days, Myco Citadel every 3 months. The most recent releases landed on October 5, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Rocket Invaders | Myco Citadel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (12 ratings)](https://appshunter.io/ios/app/myco-citadel/id6748896715/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 3 months |
| Monetization | — | Free |
| Size | 258 MB | 666 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Krada Studio Corp](https://appshunter.io/developer/1821603226) | [SkyRise Digital Pte. Ltd.](https://appshunter.io/developer/1533933994) |

## What reviewers say

### Rocket Invaders

[App page](https://appshunter.io/ios/app/rocket-invaders/id6747470112)

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanently Unlock All Weapons | $0.99 | one-time |
| Save Sector Progress | $0.99 | one-time |
| Faster Fuel Pipe Transfers | $0.99 | one-time |
| Slower Bonus Crate Expiry Time | $0.99 | one-time |
| Slower Wave Timers | $0.99 | one-time |
| Remove Ads & Extra Resource | $2.99 | one-time |
| Full Converters at New Planet | $2.99 | one-time |
| Rocket Mega Pack | $4.99 | one-time |


### Myco Citadel

[App page](https://appshunter.io/ios/app/myco-citadel/id6748896715)

Lead survivors in a zombie apocalypse, battling fungal infections and hordes of the undead. Scavenge resources, build a thriving shelter, and explore dangerous ruins to find hope.

**Highlights:** Lead survivors against fungal zombies, Scavenge resources and explore ruins, Build and upgrade a survivor shelter, Train warriors and fend off hordes, Experience immersive post-apocalyptic graphics

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

**In-app purchases:** none


## Frequently asked questions

### Is Rocket Invaders free?

Rocket Invaders is free to download, with in-app purchases available.

### Is Myco Citadel free?

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

### Do Rocket Invaders or Myco Citadel have ads?

Rocket Invaders shows ads; Myco Citadel does not.

### Which is updated more often, Rocket Invaders or Myco Citadel?

Rocket Invaders ships an update every 9 days, and Myco Citadel every 3 months. Most recently, Rocket Invaders was updated on October 5, 2026 and Myco Citadel on September 21, 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.*