Comparison

Groovy Pianotuner vs GSDSP MMMm

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Groovy Pianotuner

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
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Strobe piano tuner for vertical and grand pianos.

About

GSDSP MMMm

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
Read full description

A powerful MIDI modulation engine for controlling plugins, hardware, and instruments using LFOs, random sources, macros, and audio-based modulation. Modulate Everything MMMm is a MIDI controller and modulation workstation designed to control any parameter that accepts MIDI CC — software instruments, plugins, external hardware, or any MIDI-capable device. Create modulation using LFOs, Random Generators, Envelope Followers, XY pads, and more. No more drawing of automation curves, keep your audio dynamic and exciting with ease. Perform Live MMMm includes a dedicated Performance Skin designed for low-light and stage environments. It uses a restrained, red-accented color palette that preserves focus and minimizes visual distraction while performing. The interface remains clear and readable in dark settings, ensuring stable workflow during your live performance. MMM vs MMMm MMM includes audio input, enabling Envelope Followers, audio-reactive modulation, and audio output — ideal when used as an audio plugin. MMMm, by contrast, is a MIDI-only FX version for hosts such as Logic Pro or AUM that require a pure MIDI processor. Both versions support MIDI input and output and provide the same core modulators. MMMm is an AUv3 midi effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more. A Desktop version is also available for Windows and macOS (VST3 / AU / AAX). More information here: https://gs-dsp.com/products

Screenshots

Groovy Pianotuner1 screens
GSDSP MMMm4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

Scorecard2 real differences · 8 level
Groovy Pianotuner versus GSDSP MMMm: the parameters behind the verdict, then further details
ParameterGroovy PianotunerGSDSP MMMm
PriceFreeFree
Rating4.6 (26 ratings)4.9 (16 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings26 — better16
Update frequency—Every 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size4 MB44 MB
Age rating4+4+
DeveloperJan MaesGustav Scholda

Customer experience

Groovy Pianotuner

All ratings26 ratings
Positive92.3%
Neutral0.0%
Negative7.7%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

GSDSP MMMm

All ratings16 ratings
Positive93.8%
Neutral6.3%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Groovy Pianotuner

No in-app purchases

None

GSDSP MMMm

No in-app purchases

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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