# Melthaven vs Microtonal Lab

The clearest difference is rating: Melthaven at 5.0 against Microtonal Lab's 1.0. Melthaven also leads on price ($2.99 vs $6.99) and ratings volume (4 vs 1). Microtonal Lab's advantage is in-app purchases (none vs 1) and chart position (#197 vs unranked). On update cadence, ads, device support and iOS requirement there is nothing between them.

Melthaven costs $2.99 and Microtonal Lab $6.99 up front. Melthaven sells 1 one-off in-app purchase. Microtonal Lab asks for nothing beyond the download.

Melthaven holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Melthaven ships an update every 6 weeks, Microtonal Lab every 2 months. Both last shipped on September 15, 2026.

## The numbers

| Metric | Melthaven | Microtonal Lab |
| --- | --- | --- |
| Price | **$2.99** | $6.99 |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/melthaven/id6761633340/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/microtonal-lab/id6786773427/reviews) |
| Number of ratings | **4** | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#197** |
| Size | 23 MB | 90 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [quantovox](https://appshunter.io/developer/484686124) | [Martin Adler](https://appshunter.io/developer/1896354791) |

## 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 |


### Microtonal Lab

[App page](https://appshunter.io/ios/app/microtonal-lab/id6786773427)

**Currently charting:** #197 Top Paid · Music (US App Store)

Explore music beyond the traditional 12-note scale with this comprehensive microtonal studio. Create custom scales, play a microtonal keyboard, sequence patterns, and perform live with a launchpad. Export your creations as MIDI files for further production.

**Highlights:** Harmonic Galaxy visualizer, Microtonal keyboard with custom scales, 32-step sequencer with FX, Launchpad for live performance, Extensive world scale library, Multiple tuning systems support, MIDI export for DAWs

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

**In-app purchases:** none


## Frequently asked questions

### Is Melthaven free?

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

### Is Microtonal Lab free?

Microtonal Lab costs $6.99, with no in-app purchases.

### Which has better reviews, Melthaven or Microtonal Lab?

Melthaven is rated higher. Melthaven averages 5.0 out of 5 from 4 ratings, while Microtonal Lab averages 1.0 from 1 ratings.

### Do Melthaven or Microtonal Lab have ads?

Neither Melthaven nor Microtonal Lab shows ads.

### Which is updated more often, Melthaven or Microtonal Lab?

Melthaven ships an update every 6 weeks, and Microtonal Lab every 2 months. Most recently, Melthaven was updated on September 15, 2026 and Microtonal Lab on September 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*