Alien Box vs Heavier Metal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Alien Box
This audio effect plugin creates a unique sound with increased sustain and gentle, LFO-modulated vibes. It functions as an AUv3 effect for hosts like GarageBand or as a standalone app for real-time audio input processing.
- Unique sound enrichment
- LFO modulated vibes
- Complex resonator system
- AUv3 plugin for hosts
- Standalone app mode
- Gain, Vibe, Depth, Reverb controls
Read full descriptionHide full description
Alien Box is a completely new kind of audio effect that you have never heard before. It makes the sound big and slightly increases the sustain while adding gentle vibes to it. The vibes are LFO modulated and the effect is using very complex resonator system inside. It is modulation effect and you can compare it to flanger, phaser or chorus but it is not like any of them… The app is an Audio Unit Effect AUV3 and can be used inside GarageBand or other AU host apps as an effect plug-in. Alien Box can also run as a stand alone app adding effect to the audio input so you can play your guitar, bass or synth directly three the app if you have the connector to do so. Alien Box controls: - Gain - you can use it increase the gain and sustain - Vibe - main tone and background vibes balance - Depth - controls the modulations depth - Reverb - adds reverb to the background vibes
Heavier Metal
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.
- 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
Read full descriptionHide full description
Heavier Metal is a modern distortion plugin based on one of the most aggressive pedals of the 1990s. Built using Artera DSP’s Parametric NAM engine, it delivers not just the sound — but the full behavior of the original circuit. Every knob. Every nuance. Captured with precision. This isn’t a snapshot. Heavier Metal is fully parametric — meaning all front-panel controls respond just like the original analog pedal. From razor-sharp riffs to soaring leads, it gives you the full expressive range of the original hardware, with the flexibility of a native plugin. Key Features – Fully parametric NAM model — not a static capture – Recreates the full tone-shaping behavior of the original HM-style pedal – Mid-forward gain structure with massive sustain and tight low-end – AUv3 plugin for macOS and iOS – Native support for Apple Silicon (M1/M2) – Ultra-low CPU usage and near-zero latency Compatibility Heavier Metal runs in any AUv3-compatible host such as Logic Pro (Mac/iPad), GarageBand (Mac/iOS), AUM, Cubasis, and more. Available exclusively on the App Store.
Screenshots
Verdict
The clearest difference is review sentiment: Heavier Metal at 100% against Alien Box's 0%. Heavier Metal also leads on rating (5.0 vs 1.3). Alien Box's advantage is price ($2.99 vs $12.99) and iOS requirement (10.0 vs 13.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Alien Box costs $2.99 and Heavier Metal $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Heavier Metal holds the better App Store score, 5.0 against 1.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 0% of Alien Box's written reviews are positive against 100% of Heavier Metal's.
| Parameter | Alien Box | Heavier Metal |
|---|---|---|
| Price | $2.99 — better | $12.99 |
| Rating | 1.3 (3 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 38 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 10 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksandar Mlazev | Reinarc LLC |
Customer experience
Alien Box
Heavier Metal
In-app purchases
Alien Box
No in-app purchases
Heavier Metal
No in-app purchases









