# Kerflux vs Alien Tower

The clearest difference is ads: Kerflux at none against Alien Tower's shown. Kerflux also leads on update cadence (weekly vs every 5 months) and iOS requirement (6.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Kerflux sells 4 one-off in-app purchases and Alien Tower sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kerflux ships an update weekly, Alien Tower every 5 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Kerflux | Alien Tower |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (331 ratings)](https://appshunter.io/ios/app/kerflux/id1127933116/reviews)** | — |
| Number of ratings | **331** | — |
| Positive reviews | 96.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 57 MB | 78 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Punk Labs LLC](https://appshunter.io/developer/1011541202) | [Laurent Bakowski](https://appshunter.io/developer/1099632510) |

## What reviewers say

### Kerflux

[App page](https://appshunter.io/ios/app/kerflux/id1127933116)

Engage your mind with a unique wave-based puzzle game. Slide and match intricate wave formations in a minimalist design. Enjoy retro music and unlock achievements as you progress through increasingly challenging levels.

**Highlights:** Original wave puzzle mechanics, Increasingly challenging levels, Retro style music, Achievements, Pay what you want pricing

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bronze Supporter | $0.99 | one-time |
| Silver Supporter | $1.99 | one-time |
| Gold Supporter | $3.99 | one-time |
| Platinum Supporter | $7.99 | one-time |

**What reviewers like**

- 👍 Simple to understand
- 👍 Visual challenge
- 👍 Awesome game with no ads
- 👍 Great puzzle experience
- 👍 Beautiful shapes

**What reviewers complain about**

- 🐛 Difficulty plateaus, endgame repetitive
- 🐛 Audio cues could be improved
- 🐛 Autoassist sensitivity can be too high

**Reported bugs**

- Music not working for some users

**Requested features**

- Ability to choose number of waves
- Add more than 4 waves for increased challenge
- Implement customizable autoassist sensitivity
- Add level select/replay option
- Introduce new mechanics at higher levels


### Alien Tower

[App page](https://appshunter.io/ios/app/alien-tower/id1590674042)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Aliens ! | $1.99 | one-time |


## Frequently asked questions

### Is Kerflux free?

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

### Is Alien Tower free?

Alien Tower is free to download, with in-app purchases available.

### Do Kerflux or Alien Tower have ads?

Alien Tower shows ads; Kerflux does not.

### Which is updated more often, Kerflux or Alien Tower?

Kerflux ships an update weekly, and Alien Tower every 5 months. Most recently, Kerflux was updated on November 2, 2026 and Alien Tower on November 3, 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.*