# Alien Robot Defender vs Puzzle Fun Animals

The clearest difference is in-app purchases: Alien Robot Defender at none against Puzzle Fun Animals's 5. Alien Robot Defender also leads on iOS requirement (6.0 vs 15.6). Puzzle Fun Animals's advantage is update cadence (daily vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Puzzle Fun Animals sells 5 in-app purchases, starting at $1.99 per month. Alien Robot Defender asks for nothing beyond the download.

Alien Robot Defender ships an update every 2 months, Puzzle Fun Animals daily. Both last shipped on October 9, 2026.

## The numbers

| Metric | Alien Robot Defender | Puzzle Fun Animals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/alien-robot-defender/id460633266/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free | — |
| Size | 11 MB | 107 MB |
| Requires iOS | **6.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mike Hempfling](https://appshunter.io/developer/422781074) | [Chun-Lung Tseng](https://appshunter.io/developer/1811067217) |

## What reviewers say

### Alien Robot Defender

[App page](https://appshunter.io/ios/app/alien-robot-defender/id460633266)

Engage in a classic side-scrolling shooter experience, battling waves of alien robots. Your mission is to eliminate invaders, unlock progressively challenging levels, and achieve a high score. Master diverse robot movement patterns to succeed.

**Highlights:** Side-scrolling gameplay, Battle alien robots, Unlock new levels, High score challenges, Easy controls, 40 challenging levels

**Features:** macOS Compatibility

**In-app purchases:** none


### Puzzle Fun Animals

[App page](https://appshunter.io/ios/app/puzzle-fun-animals/id6745161776)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly — All Puzzles | $1.99 | per month |
| Annual — All Puzzles | $12.99 | per year |
| Lifetime — All Puzzles | Free | one-time |
| Unlock Cats Album | $0.99 | one-time |
| Unlock Dogs Album | $0.99 | one-time |


## Frequently asked questions

### Is Alien Robot Defender free?

Alien Robot Defender is free to download, with no in-app purchases.

### Is Puzzle Fun Animals free?

Puzzle Fun Animals is free to download, with in-app purchases available.

### Do Alien Robot Defender or Puzzle Fun Animals have ads?

Neither Alien Robot Defender nor Puzzle Fun Animals shows ads.

### Which is updated more often, Alien Robot Defender or Puzzle Fun Animals?

Alien Robot Defender ships an update every 2 months, and Puzzle Fun Animals daily. Most recently, Alien Robot Defender was updated on October 9, 2026 and Puzzle Fun Animals on October 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.*