Comparison

Sequencer Rack 2 vs GSDSP MMM

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

Head to head
About

Sequencer Rack 2

Create music and beats with a vintage-inspired step sequencer. Features 16 distinct sounds, chord progressions, and effects. Export your creations as WAV files.

Highlights
  • 16 distinct vintage sounds
  • Chord progressions in C major
  • Melody pads
  • Two audio effects
  • Export to WAV
  • Sound pitch and volume control
  • Loop playback
Features
Read full description

Sequencer Rack 2 (Retro) is step sequencer app looking like a small machine. Geared with pure vintage acoustic sounds. Banjo, guitar, synth, bass and drums! It has 16 voices that can be used in 16 patterns. It is very easy to create music and beats with it. However the sequencer has its limits. Features: - 16 different sounds - Chords in C major - Melody pads that can play the current chord - 2 effects (Stone Echo and virtual speaker) - export to .wav file - sound pitch control for every sound - can play sounds backwards - tempo BPM control - select beats per minute - volume control - can play in loop - pads volume control

About

GSDSP MMM

This app offers a robust MIDI modulation engine for controlling various instruments and plugins. It allows users to create dynamic audio with LFOs, random sources, and more, featuring a performance-focused interface for live use.

Highlights
  • MIDI CC control for plugins and hardware
  • LFOs, random sources, and envelope followers
  • Audio-based modulation capabilities
  • Dedicated Performance Skin for live use
  • AUv3 audio effect plugin
  • Desktop versions for Windows and macOS
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 MMM 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 MMM 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. MMM is an AUv3 audio 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 So what are you waiting for?

Screenshots

Sequencer Rack 23 screens
GSDSP MMM4 screens

Verdict

The call

The clearest difference is price: GSDSP MMM at Free against Sequencer Rack 2's $3.99. GSDSP MMM also leads on rating (4.7 vs 1.0) and in-app purchases (none vs 1). On ads and device support 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

GSDSP MMM is free to download; Sequencer Rack 2 costs $3.99 up front. Sequencer Rack 2 sells 1 one-off in-app purchase. GSDSP MMM asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GSDSP MMM holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: GSDSP MMM has 36 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Sequencer Rack 2's written reviews are positive against 67% of GSDSP MMM's.

UpkeepUpdate frequency

Sequencer Rack 2 ships an update every 91 months, GSDSP MMM every 5 weeks. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

Scorecard8 real differences · 2 level
Sequencer Rack 2 versus GSDSP MMM: the parameters behind the verdict, then further details
ParameterSequencer Rack 2GSDSP MMM
Price$3.99Free — better
Rating1.0 (1 ratings)4.7 (36 ratings) — better
Positive reviews50.0% of reviews66.7% of reviews — better
Number of ratings136 — better
Update frequencyEvery 91 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size14 MB65 MB
Age rating4+4+
DeveloperAleksandar MlazevGustav Scholda

Customer experience

Sequencer Rack 2

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

GSDSP MMM

All ratings36 ratings
Positive94.4%
Neutral0.0%
Negative5.6%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

1 purchases

Sequencer Rack 2

One-time1
  • Sequencer Rack 2 unlock export$1.99
None

GSDSP MMM

No in-app purchases

Questions

Is Sequencer Rack 2 free?
Sequencer Rack 2 costs $3.99, and also offers in-app purchases.
Is GSDSP MMM free?
GSDSP MMM is free to download, with no in-app purchases.
Which has better reviews, Sequencer Rack 2 or GSDSP MMM?
GSDSP MMM is rated higher. Sequencer Rack 2 averages 1.0 out of 5 from 1 ratings, while GSDSP MMM averages 4.7 from 36 ratings.
Do Sequencer Rack 2 or GSDSP MMM have ads?
Neither Sequencer Rack 2 nor GSDSP MMM shows ads.
Which is updated more often, Sequencer Rack 2 or GSDSP MMM?
Sequencer Rack 2 ships an update every 91 months, and GSDSP MMM every 5 weeks. Most recently, Sequencer Rack 2 was updated on October 29, 2026 and GSDSP MMM on October 27, 2026.

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