# Aetherium Hearts vs Dark Slayer

The clearest difference is in-app purchases: Aetherium Hearts at none against Dark Slayer's 8. Dark Slayer's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Dark Slayer sells 8 in-app purchases, starting at $3.99 per month. Aetherium Hearts asks for nothing beyond the download.

Aetherium Hearts ships an update fortnightly, Dark Slayer every 9 days. The most recent releases landed on October 11, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Aetherium Hearts | Dark Slayer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 9 days** |
| Size | 55 MB | 95 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 9+ |
| Developer | [Hitoshi Igarashi](https://appshunter.io/developer/1607620369) | [Hyunwoo Kim](https://appshunter.io/developer/1709269004) |

## What reviewers say

### Aetherium Hearts

[App page](https://appshunter.io/ios/app/aetherium-hearts/id6794991236)

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

**In-app purchases:** none


### Dark Slayer

[App page](https://appshunter.io/ios/app/dark-slayer-pixel-hack-and-slash/id6807307637)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Slayer Pact | $3.99 | per month |
| Soul Stones ×100 | $0.99 | one-time |
| Slayer Starter Pack | $0.99 | one-time |
| Soul Stones ×550 | $3.99 | one-time |
| Soul Stones ×1,200 | $7.99 | one-time |
| Remove Ads (Lifetime) | $13.99 | one-time |
| Soul Stones ×3,000 | $17.99 | one-time |
| Soul Stones ×6,600 | $34.99 | one-time |


## Frequently asked questions

### Is Aetherium Hearts free?

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

### Is Dark Slayer free?

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

### Do Aetherium Hearts or Dark Slayer have ads?

Both Aetherium Hearts and Dark Slayer show ads.

### Which is updated more often, Aetherium Hearts or Dark Slayer?

Aetherium Hearts ships an update fortnightly, and Dark Slayer every 9 days. Most recently, Aetherium Hearts was updated on October 11, 2026 and Dark Slayer on October 26, 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.*