Comparison

EduSynth vs S

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

Head to head
About

EduSynth

Explore the world of subtractive synthesis with an interactive educational tool. Learn about oscillators, filters, and envelopes through hands-on experimentation and guided lessons. Connect MIDI controllers or use your keyboard to play and create sounds.

Highlights
  • Interactive subtractive synthesis engine
  • Three oscillators with multiple waveforms
  • Classic Moog-style ladder filter
  • Dual ADSR envelopes
  • Built-in learning modules
  • MIDI controller support
Read full description

EduSynth is an educational synthesizer for iOS and macOS that teaches you the fundamentals of subtractive synthesis — by letting you play one. Built around a real-time C++ DSP engine modeled after the classic Moog architecture, EduSynth gives you three oscillators, a 24dB/octave ladder filter, dual ADSR envelopes, an LFO, and a mixer — all with a clean, intuitive interface designed for learning. PLAY & EXPLORE • Three oscillators with saw, square, triangle, and sine waveforms • Classic Moog ladder low-pass filter with resonance and self-oscillation • Separate filter and amplitude ADSR envelopes • LFO with multiple shapes and modulation targets (pitch, filter, amplitude, PWM) • Portamento with off, on, and legato modes • 10+ factory presets to get you started instantly LEARN AS YOU GO • Built-in Learn window with chapters covering signal flow, oscillators, filters, envelopes, LFO, and more • Interactive info popovers on every section explaining what each knob does • Visual signal flow strip showing how sound moves through the synth • Chapters on digital audio fundamentals and real-time audio programming CONNECT & PERFORM • Full MIDI support — connect any MIDI controller • MIDI settings window with per-device enable/disable and live activity monitor • Computer keyboard input — play notes without any hardware • Autoplay mode with selectable demo melodies DESIGNED FOR LEARNING EduSynth is perfect for music production students, audio programming enthusiasts, sound design beginners, and anyone curious about how synthesizers actually work. Every parameter is explained in plain language, and the Learn window goes deeper into the theory and code behind the sound. Available in English and Italian.

About

S

This app is a polyphonic synthesizer that works with specific hardware. It offers a variety of sound engines, filters, and effects for creating unique audio textures. Advanced modulation options and a flexible routing system allow for deep sound design.

Highlights
  • Dual engine slots per voice
  • Multiple sound flavors (analog, wavetable, FM, speech)
  • Classic and Modern filter modes
  • Advanced FX rack
  • Two free-routing LFOs
  • Unified mod matrix
  • Standalone, AU, and AUv3 formats
Features
Read full description

s-2 is a polyphonic synthesizer designed to work with the Roland AIRA Compact S-1. ENGINE Each voice runs two parallel engine slots that mix together. Pick a sound flavor per slot, including: • Classic analog — saw, square, sub, noise, pulse-width • Wavetable • FM • Speech • Chord • Plucked string FILTER AND FX Classic mode runs a vintage-style ladder filter into a simple Delay → Chorus → Reverb chain. Modern mode swaps in a multi-mode SVF (LP / BP / HP) followed by a 3-slot Advanced FX rack with Bitcrusher, Drive, Flanger, Phaser, Auto-Filter, Tape Delay, Plate Reverb and Chorus. MODULATION Two free-routing LFOs (sine / triangle / saw / square / random / noise, with optional clock-sync), a dedicated filter envelope with two destination slots, and a unified mod matrix dialog that visualizes every routing in one place. Click any knob in Learn mode to assign — no digging through menus. FORMATS • Standalone for iOS • Audio Unit (AU) for Logic Pro and other AU hosts • AUv3 plugin for iPad / iPhone in AUM, GarageBand, Cubasis and more - s-2 is an independent third-party application. It is not affiliated with, sponsored by, or endorsed by Roland Corporation. "Roland", "AIRA", "AIRA Compact", and "S-1" are trademarks of Roland Corporation, used here only to describe MIDI compatibility between this app and that hardware.

Screenshots

EduSynth3 screens
S3 screens

Verdict

The call

The clearest difference is review sentiment: EduSynth at 100% against S's 0%. EduSynth also leads on rating (5.0 vs 4.5). 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

EduSynth holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 100% of EduSynth's written reviews are positive against 0% of S's.

Scorecard2 real differences · 8 level
EduSynth versus S: the parameters behind the verdict, then further details
ParameterEduSynthS
PriceFreeFree
Rating5.0 (2 ratings) — better4.5 (4 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings24 — better
Update frequency—Every 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size4 MB17 MB
Age rating4+4+
DeveloperDavide FiorinoMathias Kirkerød

Customer experience

EduSynth

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

S

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

EduSynth

No in-app purchases

None

S

No in-app purchases

Questions

Is EduSynth free?
EduSynth is free to download, with no in-app purchases.
Is S free?
S is free to download, with no in-app purchases.
Which has better reviews, EduSynth or S?
EduSynth is rated higher. EduSynth averages 5.0 out of 5 from 2 ratings, while S averages 4.5 from 4 ratings.
Do EduSynth or S have ads?
Neither EduSynth nor S shows ads.

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