# Orbit Defense! vs Robot Siege

The clearest difference is rating: Robot Siege at 5.0 against Orbit Defense!'s 1.0. Robot Siege also leads on ads (none vs shown) and ratings volume (6 vs 1). Orbit Defense!'s advantage is in-app purchases (none vs 5) and update cadence (every 2 days vs every 4 days). On price and device support there is nothing between them.

Both are free to download. Robot Siege sells 5 one-off in-app purchases. Orbit Defense! asks for nothing beyond the download.

Robot Siege holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Robot Siege has 6 ratings behind it against 1, so its average is the more settled of the two.

Orbit Defense! ships an update every 2 days, Robot Siege every 4 days. The most recent releases landed on September 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Orbit Defense! | Robot Siege |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/orbit-defense/id6740201001/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/robot-siege/id6782699761/reviews)** |
| Number of ratings | 1 | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 144 MB | 95 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 9+ |
| Developer | [Funnel Entertainment](https://appshunter.io/developer/1128330092) | [Curtis Hendrick](https://appshunter.io/developer/6776928488) |

## What reviewers say

### Orbit Defense!

[App page](https://appshunter.io/ios/app/orbit-defense/id6740201001)

Engage in intense space combat, automatically shooting or manually aiming at enemies and asteroids. Unlock new abilities and permanent upgrades to enhance your ship's stats and progress through levels. Compete globally to climb the leaderboard and prove your dominance.

**Highlights:** Auto or manual aiming, Unlock new abilities, Permanent ship upgrades, Climb global leaderboards, Survive intense waves

**Features:** macOS Compatibility

**In-app purchases:** none


### Robot Siege

[App page](https://appshunter.io/ios/app/robot-siege/id6782699761)

A fast-paced tower defense game where players strategically place and upgrade various towers to defend their base against waves of robots. Features deep progression, multiple battlefields, and unlockable spells and power-ups. Designed by kids for kids, it offers an offline, ad-free experience.

**Highlights:** Five distinct tower types, Three unique battlefields, Deep progression system, Unlockable spells and power-ups, Four difficulty levels, Offline play

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1500 Tokens | $0.99 | one-time |
| 2x Speed Boost | $0.99 | one-time |
| 2x Token Boost | $1.99 | one-time |
| 5000 Tokens | $2.99 | one-time |
| Commander-in-Chief | $4.99 | one-time |


## Frequently asked questions

### Is Orbit Defense! free?

Orbit Defense! is free to download, with no in-app purchases.

### Is Robot Siege free?

Robot Siege is free to download, with in-app purchases available.

### Which has better reviews, Orbit Defense! or Robot Siege?

Robot Siege is rated higher. Orbit Defense! averages 1.0 out of 5 from 1 ratings, while Robot Siege averages 5.0 from 6 ratings.

### Do Orbit Defense! or Robot Siege have ads?

Orbit Defense! shows ads; Robot Siege does not.

### Which is updated more often, Orbit Defense! or Robot Siege?

Orbit Defense! ships an update every 2 days, and Robot Siege every 4 days. Most recently, Orbit Defense! was updated on September 18, 2026 and Robot Siege on October 10, 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.*