# Microtonal Lab vs SL Air

The clearest difference is rating: SL Air at 5.0 against Microtonal Lab's 1.0. SL Air also leads on update cadence (weekly vs every 2 months) and chart position (#197 vs unranked). On price, ratings volume, ads and in-app purchases there is nothing between them.

Microtonal Lab costs $6.99 and SL Air $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

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

Microtonal Lab ships an update every 2 months, SL Air weekly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Microtonal Lab | SL Air |
| --- | --- | --- |
| Price | $6.99 | $6.99 |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/microtonal-lab/id6786773427/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sl-air/id6797349220/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#197** |
| Size | 90 MB | 15 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Martin Adler](https://appshunter.io/developer/1896354791) | [VIACHESLAV ZHILTSOV](https://appshunter.io/developer/1862005860) |

## What reviewers say

### Microtonal Lab

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

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


### SL Air

[App page](https://appshunter.io/ios/app/sl-air/id6797349220)

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

Enhance your audio with this AUv3 effect, designed to add brightness, presence, and stereo width. Achieve a polished top-end for vocals, drums, samples, and full mixes with intuitive controls and a motion display.

**Highlights:** Controlled brightness (Air & Lift), Smoother high-frequency detail (Silk), Stereo expansion (Wide), Polished finish (Glow), Audio-reactive motion display, Factory and user presets, AUv3 support

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

**In-app purchases:** none


## Frequently asked questions

### Is Microtonal Lab free?

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

### Is SL Air free?

SL Air costs $6.99, with no in-app purchases.

### Which has better reviews, Microtonal Lab or SL Air?

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

### Do Microtonal Lab or SL Air have ads?

Neither Microtonal Lab nor SL Air shows ads.

### Which is updated more often, Microtonal Lab or SL Air?

Microtonal Lab ships an update every 2 months, and SL Air weekly. Most recently, Microtonal Lab was updated on November 4, 2026 and SL Air on October 31, 2026.

---

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