# Orbit defenders vs Polygon Defense

The clearest difference is in-app purchases: Orbit defenders at none against Polygon Defense's 4. Orbit defenders also leads on iOS requirement (10.1 vs 15.0). Polygon Defense's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Polygon Defense sells 4 one-off in-app purchases. Orbit defenders asks for nothing beyond the download.

Orbit defenders ships an update every 3 weeks, Polygon Defense weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Orbit defenders | Polygon Defense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/orbit-defenders/id1519670204/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 78 MB | 128 MB |
| Requires iOS | **10.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Nezam Ansari](https://appshunter.io/developer/1622381137) | [youngchan yoon](https://appshunter.io/developer/6781591716) |

## What reviewers say

### Orbit defenders

[App page](https://appshunter.io/ios/app/orbit-defenders/id1519670204)

Engage in a thrilling spaceship shooter experience, defending the Earth from alien invaders. Progress through levels to unlock new equipment or test your endurance in an endless battle mode.

**Highlights:** Spaceship shooter gameplay, Eliminate aliens, Level Mode with equipment unlocks, Infinity Mode with gold and item purchases, Defend against sky invaders

**Features:** macOS Compatibility

**In-app purchases:** none


### Polygon Defense

[App page](https://appshunter.io/ios/app/polygon-defense/id6781591712)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Crystals | $0.99 | one-time |
| crystal_200 | $1.99 | one-time |
| 600 Crystals | $4.99 | one-time |
| 1300 Crystals | $9.99 | one-time |


## Frequently asked questions

### Is Orbit defenders free?

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

### Is Polygon Defense free?

Polygon Defense is free to download, with in-app purchases available.

### Do Orbit defenders or Polygon Defense have ads?

Both Orbit defenders and Polygon Defense show ads.

### Which is updated more often, Orbit defenders or Polygon Defense?

Orbit defenders ships an update every 3 weeks, and Polygon Defense weekly. Most recently, Orbit defenders was updated on November 3, 2026 and Polygon Defense on November 5, 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.*