# Groovy Pianotuner vs GSDSP MMMm

The clearest difference is review sentiment: GSDSP MMMm at 100% against Groovy Pianotuner's 67%. GSDSP MMMm also leads on rating (4.9 vs 4.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GSDSP MMMm holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 26 and 16 respectively. Written reviews point the same way: 67% of Groovy Pianotuner's written reviews are positive against 100% of GSDSP MMMm's.

## The numbers

| Metric | Groovy Pianotuner | GSDSP MMMm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (26 ratings)](https://appshunter.io/ios/app/groovy-pianotuner/id1565645496/reviews) | **[4.9 (16 ratings)](https://appshunter.io/ios/app/gsdsp-mmmm/id6450306205/reviews)** |
| Number of ratings | **26** | 16 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | Free | Free |
| Size | 4 MB | 44 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jan Maes](https://appshunter.io/developer/1550506252) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### Groovy Pianotuner

[App page](https://appshunter.io/ios/app/groovy-pianotuner/id1565645496)

This application provides a strobe tuning experience for pianos. It is designed for both vertical and grand pianos, offering a precise way to tune your instrument.

**Highlights:** Strobe tuning, Vertical piano tuning, Grand piano tuning, Precise tuning

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

**In-app purchases:** none


### GSDSP MMMm

[App page](https://appshunter.io/ios/app/gsdsp-mmmm/id6450306205)

This app provides a powerful MIDI modulation engine to control various plugins, hardware, and instruments. It offers a range of modulation sources like LFOs and random generators, and includes a dedicated performance skin for live use. It's a MIDI-only FX version for hosts requiring pure MIDI processing.

**Highlights:** MIDI CC control for plugins and hardware, LFO, Random, Envelope Follower modulators, XY pads for modulation, Dedicated Performance Skin for live use, AUv3 MIDI FX plugin, Desktop versions available

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

**In-app purchases:** none


## Frequently asked questions

### Is Groovy Pianotuner free?

Groovy Pianotuner is free to download, with no in-app purchases.

### Is GSDSP MMMm free?

GSDSP MMMm is free to download, with no in-app purchases.

### Which has better reviews, Groovy Pianotuner or GSDSP MMMm?

GSDSP MMMm is rated higher. Groovy Pianotuner averages 4.6 out of 5 from 26 ratings, while GSDSP MMMm averages 4.9 from 16 ratings.

### Do Groovy Pianotuner or GSDSP MMMm have ads?

Neither Groovy Pianotuner nor GSDSP MMMm 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.*