# Heavier Metal vs STEM

The clearest difference is price: Heavier Metal at $12.99 against STEM's $14.99. Heavier Metal also leads on device support (4 vs 2) and iOS requirement (13.0 vs 26.0). On ads and in-app purchases there is nothing between them.

Heavier Metal costs $12.99 and STEM $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Heavier Metal | STEM |
| --- | --- | --- |
| Price | **$12.99** | $14.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/heavier-metal/id6746564425/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | Paid | — |
| Size | 80 MB | 283 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Reinarc LLC](https://appshunter.io/developer/1469876288) | [Michael Ivertowski](https://appshunter.io/developer/6774757588) |

## What reviewers say

### Heavier Metal

[App page](https://appshunter.io/ios/app/heavier-metal/id6746564425)

This music plugin emulates a classic 1990s distortion pedal with advanced digital modeling. It offers full parametric control, capturing the original circuit's behavior for a wide range of guitar tones. Optimized for low CPU usage and low latency, it's compatible with various AUv3 hosts.

**Highlights:** Parametric NAM distortion model, Recreates original pedal behavior, Mid-forward gain, tight low-end, AUv3 plugin for Mac/iOS, Native Apple Silicon support, Ultra-low CPU, near-zero latency

**Features:** Vision Pro support

**In-app purchases:** none


### STEM

[App page](https://appshunter.io/ios/app/stem-live-stem-separation/id6808668529)

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

**In-app purchases:** none


## Frequently asked questions

### Is Heavier Metal free?

Heavier Metal costs $12.99, with no in-app purchases.

### Is STEM free?

STEM costs $14.99, with no in-app purchases.

### Do Heavier Metal or STEM have ads?

Neither Heavier Metal nor STEM shows ads.

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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.*