# Three Piggy vs Alien Robot Defender

The clearest difference is review sentiment: Alien Robot Defender at 100% against Three Piggy's 59%. Alien Robot Defender also leads on rating (5.0 vs 4.5) and ads (none vs shown). Three Piggy's advantage is ratings volume (4 vs 1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Alien Robot Defender holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 59% of Three Piggy's written reviews are positive against 100% of Alien Robot Defender's.

Three Piggy ships an update monthly, Alien Robot Defender every 2 months. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Three Piggy | Alien Robot Defender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/three-piggy/id402989981/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/alien-robot-defender/id460633266/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 58.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 17 MB | 11 MB |
| Requires iOS | 15.0 | **6.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kinicy](https://appshunter.io/developer/366096366) | [Mike Hempfling](https://appshunter.io/developer/422781074) |

## What reviewers say

### Three Piggy

[App page](https://appshunter.io/ios/app/three-piggy/id402989981)

A puzzle game where players must clear tiles by matching three vertically or diagonally. Repel wolves before they destroy the picture and survive as long as possible. Unlock new skills and game modes as you progress.

**Highlights:** Match three tiles vertically or diagonally, Repel wolves to prevent destruction, Unlock new skills, Automatic game data saving, Multiple save slots, New game modes

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Three Piggy free?

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

### Is Alien Robot Defender free?

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

### Which has better reviews, Three Piggy or Alien Robot Defender?

Alien Robot Defender is rated higher. Three Piggy averages 4.5 out of 5 from 4 ratings, while Alien Robot Defender averages 5.0 from 1 ratings.

### Do Three Piggy or Alien Robot Defender have ads?

Three Piggy shows ads; Alien Robot Defender does not.

### Which is updated more often, Three Piggy or Alien Robot Defender?

Three Piggy ships an update monthly, and Alien Robot Defender every 2 months. Most recently, Three Piggy was updated on October 15, 2026 and Alien Robot Defender 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.*