# Alien Attack Idle Simulator 3D vs Hero

The clearest difference is in-app purchases: Hero at none against Alien Attack Idle Simulator 3D's 11. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Alien Attack Idle Simulator 3D sells 11 one-off in-app purchases. Hero asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on May 16, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Alien Attack Idle Simulator 3D | Hero |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | Every 4 days |
| Size | 175 MB | 153 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [APPWILL COMPANY LTD](https://appshunter.io/developer/1761313938) | [家傲 郭](https://appshunter.io/developer/1801216745) |

## What reviewers say

### Alien Attack Idle Simulator 3D

[App page](https://appshunter.io/ios/app/alien-attack-idle-simulator-3d/id6686404136)

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Little kit with currencys | $1.99 | one-time |
| Classic starter pack | $1.99 | one-time |
| Premium personalized kit | $1.99 | one-time |
| Premium starter pack | $3.29 | one-time |
| All premium starter pack | $3.69 | one-time |
| Medium kit with currencys | $5.49 | one-time |
| 600 Crystals | $7.39 | one-time |
| Big kit with currencys | $8.99 | one-time |
| All kit with currencys | $9.29 | one-time |
| 1100 Crystals | $12.99 | one-time |
| 1000 Crystals | $12.99 | one-time |


### Hero

[App page](https://appshunter.io/ios/app/hero-tower-defense/id6743142617)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alien Attack Idle Simulator 3D free?

Alien Attack Idle Simulator 3D is free to download, with in-app purchases available.

### Is Hero free?

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

### Do Alien Attack Idle Simulator 3D or Hero have ads?

Both Alien Attack Idle Simulator 3D and Hero show ads.

### Which is updated more often, Alien Attack Idle Simulator 3D or Hero?

Alien Attack Idle Simulator 3D ships an update every 4 days, and Hero every 4 days. Most recently, Alien Attack Idle Simulator 3D was updated on May 16, 2026 and Hero on September 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.*