# Unstable! vs Axe!

The clearest difference is in-app purchases: Unstable! at none against Axe!'s 1. Unstable! also leads on iOS requirement (13.0 vs 17.0). Axe!'s advantage is ads (none vs shown) and update cadence (every 4 days vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Axe! sells 1 one-off in-app purchase. Unstable! asks for nothing beyond the download.

Unstable! ships an update every 4 months, Axe! every 4 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Unstable! | Axe! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (5 ratings)](https://appshunter.io/ios/app/unstable/id1282444122/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 153 MB | 17 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Leonardo Amora](https://appshunter.io/developer/690988469) | [Juan Casanueva](https://appshunter.io/developer/427769040) |

## What reviewers say

### Unstable!

[App page](https://appshunter.io/ios/app/unstable/id1282444122)

Control a bar to defend falling balls from a central core. Collect power-ups to enhance your gameplay and see how long you can survive. Enjoy endless, casual fun with new levels and music.

**Highlights:** Defend falling balls, Move bar with touch/drag, Collect power-ups, Endless gameplay, New level, new song, Casual mechanics

**Features:** Vision Pro support

**In-app purchases:** none


### Axe!

[App page](https://appshunter.io/ios/app/axe/id6759577446)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a coffee | $0.99 | one-time |


## Frequently asked questions

### Is Unstable! free?

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

### Is Axe! free?

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

### Do Unstable! or Axe! have ads?

Unstable! shows ads; Axe! does not.

### Which is updated more often, Unstable! or Axe!?

Unstable! ships an update every 4 months, and Axe! every 4 days. Most recently, Unstable! was updated on November 3, 2026 and Axe! on October 30, 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.*