# Alien Robot Defender Free vs Key Clicker ASMR

The clearest difference is in-app purchases: Alien Robot Defender Free at none against Key Clicker ASMR's 10. Alien Robot Defender Free also leads on ads (none vs shown) and rating (3.7 vs 3.3). Key Clicker ASMR's advantage is update cadence (every 3 days vs every 50 months). On price, ratings volume and device support there is nothing between them.

Both are free to download. Key Clicker ASMR sells 10 one-off in-app purchases. Alien Robot Defender Free asks for nothing beyond the download.

Alien Robot Defender Free holds the better App Store score, 3.7 against 3.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

Alien Robot Defender Free ships an update every 50 months, Key Clicker ASMR every 3 days. The most recent releases landed on November 1, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Alien Robot Defender Free | Key Clicker ASMR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/alien-robot-defender-free/id548626813/reviews)** | [3.3 (4 ratings)](https://appshunter.io/ios/app/key-clicker-asmr/id6789597732/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 50 months | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 147 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mike Hempfling](https://appshunter.io/developer/422781074) | [Upcasual Games](https://appshunter.io/developer/1872671524) |

## What reviewers say

### Alien Robot Defender Free

[App page](https://appshunter.io/ios/app/alien-robot-defender-free/id548626813)

Engage in a classic side-scrolling shooter, defending against waves of alien robots. Strategically shoot invaders to unlock new levels and achieve high scores. Different robot behaviors add to the challenge.

**Highlights:** Classic side-scrolling gameplay, Battle alien robots, Unlock new levels, High score challenges, Master 40 levels, Sharp shooter bonus

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

**In-app purchases:** none


### Key Clicker ASMR

[App page](https://appshunter.io/ios/app/key-clicker-asmr/id6789597732)

Design and build your own spinning machine by placing and merging buttons. Add fingers and upgrade wheel speed to launch thousands of balls that smash through endless blocks. Enjoy satisfying physics and incremental gameplay.

**Highlights:** Design custom button wheels, Merge buttons for increased power, Add fingers for faster production, Upgrade wheel speed, Launch thousands of balls automatically, Satisfying physics destruction, Endless idle progression

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coin Pack 50% | $2.49 | one-time |
| Large Coin Pack 50% | $7.49 | one-time |
| Income Bundle 50% | $9.99 | one-time |
| Autotap Bundle 50% | $9.99 | one-time |
| Large Coin Pack 25% | $11.49 | one-time |
| Income Bundle 25% | $14.99 | one-time |
| Autotap Bundle 25% | $14.99 | one-time |
| Large Coin Pack | $14.99 | one-time |
| Income Bundle | $19.99 | one-time |
| Autotap Bundle | $19.99 | one-time |


## Frequently asked questions

### Is Alien Robot Defender Free free?

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

### Is Key Clicker ASMR free?

Key Clicker ASMR is free to download, with in-app purchases available.

### Which has better reviews, Alien Robot Defender Free or Key Clicker ASMR?

Alien Robot Defender Free is rated higher. Alien Robot Defender Free averages 3.7 out of 5 from 3 ratings, while Key Clicker ASMR averages 3.3 from 4 ratings.

### Do Alien Robot Defender Free or Key Clicker ASMR have ads?

Key Clicker ASMR shows ads; Alien Robot Defender Free does not.

### Which is updated more often, Alien Robot Defender Free or Key Clicker ASMR?

Alien Robot Defender Free ships an update every 50 months, and Key Clicker ASMR every 3 days. Most recently, Alien Robot Defender Free was updated on November 1, 2026 and Key Clicker ASMR on November 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.*