Comparison

KQ MiniSynth Legacy vs S

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

Head to head
About

KQ MiniSynth Legacy

Create unique sounds with a powerful polyphonic modular synthesizer. Patch together various modules like oscillators, filters, and sequencers to design complex audio textures. Supports MIDI, Audiobus, and Ableton Link for seamless integration with other music production tools.

Highlights
  • Polyphonic modular synthesis
  • Patchable module system
  • Extensive module library
  • MIDI and Audiobus support
  • Ableton Link integration
  • Audio Unit Extension (AUv3)
Features
Read full description

### THIS IS A DEPRECATED PRODUCT. Get KQ MiniSynth 26 instead. ### If you bought this app recently, you can request a refund. KQ MiniSynth is a powerful polyphonic modular synthesizer. This app allows you to create sounds by patching modules. You can add/remove up to 100 modules at will. (Oscillators, Envelope Generators, Filters, and so on) Of course, it depends on the capability of your device. Modular system is also good for education use. You can learn the role of various modules while patching those. The Patch-Editing view supports zooming. You can connect modules with taps easily. 71 Presets are included. External and Virtual MIDI is Supported. MIDI over Bluetooth LE is Supported (Act as a Central device). Inter-App Audio is Supported. Audiobus is Supported. Ableton Link integration. Includes an Audio Unit Extension (AUv3 Instrument). FAQ: Q: The output sounds too quiet. A: Expression value(Ctrl #11) may be too small. Try to Tap "RESET" on I/O Panel. When it is not improved, try changing an option "Boost Velocities". Q: The velocities seem to be ignored on Audio Unit. A: If you want to enable the note velocity function in Audio Unit, try to turn off "Ignore Velocities" in the settings. (The default is enable because GarageBand sends velocities randomly.) This app has the following modules. Oscillator - Oscillator Type A (Frequency Modulation) - Oscillator Type B (Pulse Width Modulation) - Super Saw Oscillator - Low Frequency Oscillator - LFO Type B (Tempo Synchronization) - Noise Generator (White/Pink) Mixer/Amplifier - 4 Channel Mixer - CV Mixer - Crossfader - Voltage-Controlled Amplifier - Low Pass Gate - Sample-and-Hold Amplifier - Booster Envelope/Logic - Envelope Generator Type A - Envelope Generator Type B - Toggle - Inverting Circuit - Logical And (Series Switch) - Logical Or (Parallel Switch) - Polyphonic Or Gate - Maximum/Minimum Selector Modulator - Curve Function - Multiplier - V/Oct Vibrator - Keyboard Level Scaling - Ring Modulator - Wave Shaper Filter/Effector - Voltage-Controlled Filter (LPF/HPF/BPF/BEF) - All-Pass Filter - Delay Effector - Modulated Delay - Reverb Filter (KQ) - Reverb Filter (FreeVerb) - Compressor - Chorus Effector - Flanger - Bit Crusher Clock - Loop Gate (Tempo Synchronization) - 8 Step Sequencer - 8 Step CV Sequencer - 8 Step Gate Sequencer Stereo/Mono Converter - Mono To Dualmono - Stereo To Mono - Panner Miscellaneous - Custom Controller - Const Value - Oscilloscope If you feel it sounds noisy, slow or stuttering, try to decrease polyphony, increase buffer size and reduce connected modules. Introducing Audiobus support: Now you can stream live audio directly to other Audiobus-compatible apps! See http://audiob.us for more information. Ableton Link is a new technology that synchronizes beat, phase and tempo of Ableton Live and Link-enabled iOS apps over a wireless network. Machine translated text is included in this application and description. Terms of Use: https://www.kiraqtech.jp/termsofuse/

About

S

This semi-modular synthesizer app for iPad offers a hands-on sound design experience with a single-screen interface for intuitive patching. It delivers a warm, vintage sound inspired by 1970s synthesizers, featuring dual oscillators, resonant filters, and multiple modulation sources.

Highlights
  • Single-screen interface
  • Fast, hands-on patching
  • Vintage 1970s synth sound
  • Dual oscillators
  • Resonant ladder filter
  • Multiple modulation sources
Features
Read full description

S-Modular is a semi-modular synthesiser for iPad, designed for fast, hands-on patching without clutter. Everything is presented on a single screen, making sound design immediate and intuitive. Simply drag from one jack to another to create connections. S-Modular delivers a distinctive vintage sound inspired by classic 1970s synthesis — warm, rich, and full of character. Features Dual oscillators 24 dB/oct ladder filter Resonant high-pass and low-pass filters Two LFOs Four-step CV sequencer Four-track mixer Audio and CV splitter Two AHR envelope generators Delay effect

Screenshots

KQ MiniSynth Legacy4 screens
S2 screens

Verdict

The call

The clearest difference is review sentiment: KQ MiniSynth Legacy at 91% against S's 31%. KQ MiniSynth Legacy also leads on rating (4.8 vs 2.6) and update cadence (every 2 months vs every 7 months). S's advantage is price ($2.99 vs $11.99) and in-app purchases (none vs 4). On ratings volume, ads, monetization model 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

KQ MiniSynth Legacy costs $11.99 and S $2.99 up front. KQ MiniSynth Legacy sells 4 one-off in-app purchases. S asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

KQ MiniSynth Legacy holds the better App Store score, 4.8 against 2.6. Both are backed by a comparable volume of ratings — 24 and 11 respectively. Written reviews point the same way: 91% of KQ MiniSynth Legacy's written reviews are positive against 31% of S's.

UpkeepUpdate frequency

KQ MiniSynth Legacy ships an update every 2 months, S every 7 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
KQ MiniSynth Legacy versus S: the parameters behind the verdict, then further details
ParameterKQ MiniSynth LegacyS
Price$11.99$2.99 — better
Rating4.8 (24 ratings) — better2.6 (11 ratings)
Positive reviews90.9% of reviews — better31.3% of reviews
Number of ratings24 — better11
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.4 — better15.6
Further details — not scored
Size10 MB7 MB
Age rating4+4+
DeveloperRyouta KiraPaul Betowski

Customer experience

KQ MiniSynth Legacy

All ratings24 ratings
Positive95.8%
Neutral0.0%
Negative4.2%
Written reviews33 reviews
Positive90.9%
Neutral0.0%
Negative9.1%

S

All ratings11 ratings
Positive27.3%
Neutral27.3%
Negative45.5%
Written reviews16 reviews
Positive31.3%
Neutral25.0%
Negative43.8%

In-app purchases

4 purchases

KQ MiniSynth Legacy

One-time4
  • Small Tip$0.99
  • Medium Tip$4.99
  • Large Tip$14.99
Show 1 more
  • Huge Tip$39.99
None

S

No in-app purchases

Questions

Is KQ MiniSynth Legacy free?
KQ MiniSynth Legacy costs $11.99, and also offers in-app purchases.
Is S free?
S costs $2.99, with no in-app purchases.
Which has better reviews, KQ MiniSynth Legacy or S?
KQ MiniSynth Legacy is rated higher. KQ MiniSynth Legacy averages 4.8 out of 5 from 24 ratings, while S averages 2.6 from 11 ratings.
Do KQ MiniSynth Legacy or S have ads?
Neither KQ MiniSynth Legacy nor S shows ads.
Which is updated more often, KQ MiniSynth Legacy or S?
KQ MiniSynth Legacy ships an update every 2 months, and S every 7 months. Most recently, KQ MiniSynth Legacy was updated on November 2, 2026 and S on November 6, 2026.

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