Comparison

S vs Splitonic

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

Head to head
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.

About

Splitonic

This audio unit plugin for iOS and macOS splits sound into harmonic and percussive components using spectral decomposition. It's ideal for remixing when stems aren't available, offering real-time processing and adjustable filters.

Highlights
  • AUv3 Plugin for iOS & macOS
  • Spectrogram decomposition
  • Real-time processing
  • Adjustable median filter sizes
  • Configurable separation threshold
  • Three-way separation
  • Preset system
Features
Read full description

Splitonic is an AUv3 audio unit for iOS and macOS. It is a filter based on the Fourier spectrum of the input signal and can be used to split the sound in a harmonic and a percussive component. Ideal for remixing when no separate stems are available. Features: - AUv3 Plugin for iOS & macOS. - Spectrogram decomposition: Splits an audio signal into controllable pitched and transient energy layers. - Real time processing: Low-latency controllable by the user. - Kernel dimensions: Adjustable horizontal (time) and vertical (frequency) median filter sizes. - Separation threshold: Configurable threshold to trade off separation isolation against musical artifacts. - Three-Way Separation: Isolates an additional "residual" or noise component to capture background hiss, vocals, or applause. - Preset system: with factory and user presets, plus import/export. - Demo mode available: purchase to unlock full version. - Optimized layout: for portrait and landscape orientations.

Screenshots

S3 screens
Splitonic4 screens

Verdict

The call

The clearest difference is rating: Splitonic at 5.0 against S's 4.5. Splitonic also leads on update cadence (every 2 weeks vs every 6 weeks) and device support (4 vs 2). S's advantage is in-app purchases (none vs 1). On price, ratings volume, ads and iOS requirement 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. Splitonic sells 1 one-off in-app purchase. S asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Splitonic holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

UpkeepUpdate frequency

S ships an update every 6 weeks, Splitonic every 2 weeks. The most recent releases landed on September 26, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 5 level
S versus Splitonic: the parameters behind the verdict, then further details
ParameterSSplitonic
PriceFreeFree
Rating4.5 (4 ratings)5.0 (2 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings4 — better2
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS16.015.6 — better
Further details — not scored
Size17 MB10 MB
Age rating4+4+
DeveloperMathias KirkerødJan Maes

Customer experience

S

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

Splitonic

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

S

No in-app purchases

1 purchases

Splitonic

One-time1
  • Splitonic Activation$4.99

Questions

Is S free?
S is free to download, with no in-app purchases.
Is Splitonic free?
Splitonic is free to download, with in-app purchases available.
Which has better reviews, S or Splitonic?
Splitonic is rated higher. S averages 4.5 out of 5 from 4 ratings, while Splitonic averages 5.0 from 2 ratings.
Do S or Splitonic have ads?
Neither S nor Splitonic shows ads.
Which is updated more often, S or Splitonic?
S ships an update every 6 weeks, and Splitonic every 2 weeks. Most recently, S was updated on September 26, 2026 and Splitonic on October 11, 2026.

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