Comparison

Mini Synthesizer for iPhone vs Chord Roulette

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

Head to head
About

Mini Synthesizer for iPhone

This app digitally recreates a classic analog synthesizer, offering vintage sound effects and modern updates. It features intuitive controls for pitch, filters, and delay, allowing for extensive sound customization. Ideal for musicians and enthusiasts seeking authentic analog tones.

Highlights
  • Faithful digital re-creation of a cult-classic analog synthesizer
  • Vintage synth sounds with modern updates
  • Intuitive controls with 12 sliders and 9 switches
  • Extensive sound shaping for pitch, filters, and delay
  • 25 presets and unlimited user preset storage
  • Audiobus capabilities
Features
Read full description

Electro-Harmonix, a pioneer since 1968 in the field of sound effects pedals for musicians, has produced an app which is a faithful digital re-creation of their circa 1980 analog cult-classic, The MINI-SYNTHESIZER. Available for iPad and iPhone (IOS version 15.0 or later), the EHX MINI-SYNTHESIZER accurately delivers all the vintage synth sounds of the original plus modern updates. EHX President and Founder, Mike Matthews stated: “Fans of vintage synths will appreciate the apps ability to recreate the original’s warm analog sounds and deep funky bass, but because it’s so affordable ($2.99 for phone, $4.99 for tablet) and user-friendly, parents, educators and non-musicians will love it, too.” The MINI-SYNTHESIZER app comes with 25 presets and the ability to store an almost unlimited number of user presets programs. Audiobus capabilities are also included. Intuitive, flexible and powerful control are provided by the MINI-SYNTHESIZER’s 12 sliders and nine switches. Here’s a breakdown of the user interface: OSC Section - PITCH slider lets the player raise or lower the pitch of the note by +/- 1 octave - SUB-OCTAVE slider introduces a note one octave below what’s being played for extra bottom - OCTAVE UP switch causes the note being played to jump up one octave. - TUNE knob lets the player tune the MINI-SYNTHESIZER to other instruments and sound sources over a +/- 50 cents range. FILTERS Section - PHASE RATE slider adjusts the speed of the phase shifter - FILTER START sets the start frequency of the filter sweep - FILTER STOP sets the stop frequency of the filter sweep - SWEEP RATE controls the speed of the filter sweep - PHASE switch turns the effect on/off - 2X FILTER switch changes how the audio passes through the filters (either in parallel or in series) - Q switch sets the amount of resonance on the filter sweep - RETRIGGER switch turns the filter retrigger on/off DELAY Section - TIME slider adjusts the delay time up to two seconds - FEEDBACK controls the number of echo repeats - BLEND adjusts the mix of the original signal and the echo repeats - DELAY switch turns the effect on/off - TIME label can be tapped for tap tempo REVERB Section - AMOUNT slider adjusts the reverb effect level - BLEND slider controls the mix of the wet and dry signals - REVERB switch turns reverb on/off - REVERB>DELAY switch lets the user place either Delay or Reverb first in the effects chain for a variety of cool sound effects. MISCELLANEOUS CONTROLS - VOL (Volume) slider adjusts the MINI-SYNTHESIZER’s overall sound output level - POLY/MONO switch toggles between polyphonic (four notes can be played simultaneously) or monophonic (only one note can be played at a time) modes - PRESETS pop-down menu displays the presets available and allows the user to instantly select one - HORIZONTAL slider lets the player adjust the keyboards sounding range over an expansive eight-octave range. - RIBBON Interface lets the player perform portamento (glide up or down to pitch), vibrato and other expressive playing. The easy-to-use Electro-Harmonix MINI-SYNTHESIZER App is loaded with great sounds and features and is sure to appeal to serious musicians and non-musicians alike. LIMITATIONS - InterApp Audio experiences periodic crashes and graphics issues. - The MINI SYNTH runs at 48 kHz sample rate; using the MINI SYNTH in an environment with 44.1 kHz sample rate (such as Garageband for iOS) may cause aliasing. - Presets saved in the standalone app cannot be accessed when using the MINI SYNTH as an AudioUnit, and vice versa. DOWNLOADING iPHONE VERSION ON iPAD - The iPhone version is not meant to perform optimally on the iPad. Be aware that if you download the iPhone version on the iPad you are more prone to glitches and crashes than having the iPad version on the iPad.

About

Chord Roulette

This AUv3 MIDI plugin transforms a single MIDI note into a wide range of harmonious chords, enabling generative music composition. It offers extensive control over parameters, scales, and real-time adjustments for creative musical exploration.

Highlights
  • Chord generation from single MIDI notes
  • Automation-ready parameters
  • Generative music composition
  • Diverse scale and mode selection
  • Real-time precision adjustments
  • AUv3 compatibility for DAWs
Features
Read full description

Welcome to Chord Roulette, your gateway to boundless musical creativity. Chord Roulette is an AUv3 MIDI plugin that takes a single MIDI note and transforms it into a mesmerizing array of harmonious chords, offering an infinite realm of possibilities for generative music composition. Key Features: - Chord Generation Mastery: Instantly convert a single MIDI note into a rich tapestry of harmonically intricate chords, exploring scales and tonalities effortlessly. - Automation at Your Fingertips: Every parameter within Chord Roulette is automation-ready, granting you meticulous control over your compositions. - Generative Magic: Witness your musical ideas evolve and expand organically, giving birth to fresh and captivating compositions with minimal effort. - Scale Selection Flexibility: Choose from a diverse array of scales, modes, and tonalities to craft the perfect musical atmosphere. - Real-Time Precision: Fine-tune your chord progressions and melodies on the fly, ensuring each note aligns perfectly with your vision. - AUv3 Compatibility: Seamlessly integrate Chord Roulette into your preferred iOS DAWs, offering complete creative control. With Chord Roulette, you possess the ultimate tool to compose generative music that reflects your unique artistic vision. Whether you're a composer, producer, or performer, our plugin empowers you to craft musical journeys that captivate and inspire. Unleash your musical imagination. Download Chord Roulette now and embark on an endless voyage of generative music composition!

Screenshots

Mini Synthesizer for iPhone3 screens
Chord Roulette1 screens

Verdict

The call

Mini Synthesizer for iPhone and Chord Roulette both sit at 4.3 stars, but that hides the real split: 71% of Chord Roulette's written reviews are positive against 36% of Mini Synthesizer for iPhone's. Chord Roulette also leads on update cadence (every 3 days vs every 4 months) and ratings volume (23 vs 3). Mini Synthesizer for iPhone's advantage is iOS requirement (13.0 vs 15.6). On rating, ads, in-app purchases and monetization model 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

Mini Synthesizer for iPhone costs $2.99 and Chord Roulette $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.3 for Mini Synthesizer for iPhone against 4.4 for Chord Roulette. That said, the two scores are not equally well evidenced: Chord Roulette has 23 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 36% of Mini Synthesizer for iPhone's written reviews are positive against 71% of Chord Roulette's.

UpkeepUpdate frequency

Mini Synthesizer for iPhone ships an update every 4 months, Chord Roulette every 3 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Mini Synthesizer for iPhone versus Chord Roulette: the parameters behind the verdict, then further details
ParameterMini Synthesizer for iPhoneChord Roulette
Price$2.99$0.99 — better
Rating4.3 (3 ratings)4.4 (23 ratings) — better
Positive reviews35.9% of reviews71.4% of reviews — better
Number of ratings323 — better
Update frequencyEvery 4 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.6
Further details — not scored
Size14 MB3 MB
Age rating4+4+
DeveloperElectro-HarmonixDenis Safiullin

Customer experience

Mini Synthesizer for iPhone

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews39 reviews
Positive35.9%
Neutral2.6%
Negative61.5%

Chord Roulette

All ratings20 ratings
Positive85.0%
Neutral0.0%
Negative15.0%
Written reviews21 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

In-app purchases

None

Mini Synthesizer for iPhone

No in-app purchases

None

Chord Roulette

No in-app purchases

Questions

Is Mini Synthesizer for iPhone free?
Mini Synthesizer for iPhone costs $2.99, with no in-app purchases.
Is Chord Roulette free?
Chord Roulette costs $0.99, with no in-app purchases.
Which has better reviews, Mini Synthesizer for iPhone or Chord Roulette?
Chord Roulette is rated higher. Mini Synthesizer for iPhone averages 4.3 out of 5 from 3 ratings, while Chord Roulette averages 4.4 from 23 ratings.
Do Mini Synthesizer for iPhone or Chord Roulette have ads?
Neither Mini Synthesizer for iPhone nor Chord Roulette shows ads.
Which is updated more often, Mini Synthesizer for iPhone or Chord Roulette?
Mini Synthesizer for iPhone ships an update every 4 months, and Chord Roulette every 3 days. Most recently, Mini Synthesizer for iPhone was updated on November 2, 2026 and Chord Roulette on November 3, 2026.

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