# Block Invaders vs Operation

The clearest difference is in-app purchases: Operation at none against Block Invaders's 2. Operation also leads on update cadence (daily vs every 12 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Block Invaders sells 2 one-off in-app purchases. Operation asks for nothing beyond the download.

Block Invaders ships an update every 12 months, Operation daily. The most recent releases landed on August 26, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Block Invaders | Operation |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 12 months | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 91 MB | 12 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QED Gaming PTY. Ltd](https://appshunter.io/developer/441029909) | [Boris Kravchenko](https://appshunter.io/developer/1700260082) |

## What reviewers say

### Block Invaders

[App page](https://appshunter.io/ios/app/block-invaders-tower-defense/id980999892)

Command a planetary defense platform to shoot down waves of alien invaders. Strategically build and upgrade weapons, each with unique abilities, to counter diverse enemy behaviors and complete missions.

**Highlights:** Command orbital defense platform, Build and upgrade weapons, Shoot down incoming alien waves, Diverse invader behaviors, Multiple weapon abilities, Mission-based gameplay

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Earth Missions 6 to 10 | $0.99 | one-time |
| No Adverts | $1.99 | one-time |


### Operation

[App page](https://appshunter.io/ios/app/operation-invaders-from-space/id6738130147)

Pilot a spaceship to defend Earth from an alien invasion. Dodge enemy ships, collect star dust for points, and use onboard weapons to defeat the xenomorphs and save humanity.

**Highlights:** Spaceship combat, Alien invasion defense, Dodge enemy ships, Collect star dust, Use onboard weapons

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Block Invaders free?

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

### Is Operation free?

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

### Do Block Invaders or Operation have ads?

Neither Block Invaders nor Operation shows ads.

### Which is updated more often, Block Invaders or Operation?

Block Invaders ships an update every 12 months, and Operation daily. Most recently, Block Invaders was updated on August 26, 2026 and Operation on June 1, 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.*