# Melthaven vs FET Acoustic Compressor

The clearest difference is in-app purchases: FET Acoustic Compressor at none against Melthaven's 1. FET Acoustic Compressor also leads on iOS requirement (13.0 vs 17.0). Melthaven's advantage is price ($2.99 vs $5.99). On rating, ratings volume, update cadence and ads there is nothing between them.

Melthaven costs $2.99 and FET Acoustic Compressor $5.99 up front. Melthaven sells 1 one-off in-app purchase. FET Acoustic Compressor asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Melthaven against 5.0 for FET Acoustic Compressor. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Melthaven ships an update every 6 weeks, FET Acoustic Compressor every 2 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | Melthaven | FET Acoustic Compressor |
| --- | --- | --- |
| Price | **$2.99** | $5.99 |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/melthaven/id6761633340/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/fet-acoustic-compressor/id6763790891/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 23 MB | 9 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [quantovox](https://appshunter.io/developer/484686124) | [Shelbybark LLC](https://appshunter.io/developer/1895490257) |

## What reviewers say

### Melthaven

[App page](https://appshunter.io/ios/app/melthaven/id6761633340)

This app provides a note-triggered phase shifter for guitarists, bassists, and synthesizers. It offers organic, rhythmic movement that syncs to your playing, with analog-modeled filters for diverse sonic textures. Enhance loops or create experimental sounds with its input-dependent modulation.

**Highlights:** Note-triggered phase shifting, Analog-modeled OTA filters, Responds to guitar and bass transients, Enhances pre-recorded loops, Input-dependent synth modulation, Low-latency engine

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Melthaven Pro | $4.99 | one-time |


### FET Acoustic Compressor

[App page](https://appshunter.io/ios/app/fet-acoustic-compressor/id6763790891)

This app emulates the warm, musical character of classic FET compressors for acoustic instruments and more. It offers intuitive controls for punch, presence, and glue, with a special "All-In" mode for aggressive sounds. Designed for mobile studios and live performance.

**Highlights:** Classic FET compression emulation, Voiced for acoustic guitar, versatile for other instruments, Intuitive controls: IN, ATTACK, RELEASE, RATIO, OUT, DRY, SC HPF, Special "All-In" mode for aggressive sounds, AUv3 plugin support for popular DAWs, Low latency for live performance, Factory presets included

**In-app purchases:** none


## Frequently asked questions

### Is Melthaven free?

Melthaven costs $2.99, and also offers in-app purchases.

### Is FET Acoustic Compressor free?

FET Acoustic Compressor costs $5.99, with no in-app purchases.

### Which has better reviews, Melthaven or FET Acoustic Compressor?

Melthaven and FET Acoustic Compressor are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.

### Do Melthaven or FET Acoustic Compressor have ads?

Neither Melthaven nor FET Acoustic Compressor shows ads.

### Which is updated more often, Melthaven or FET Acoustic Compressor?

Melthaven ships an update every 6 weeks, and FET Acoustic Compressor every 2 months. Most recently, Melthaven was updated on October 31, 2026 and FET Acoustic Compressor on October 31, 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.*