S vs ToneNoise
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
ToneNoise
Generate precise sine waves and various noise types for audio production, sound design, and technical tasks. Offers adjustable frequency and amplitude with a compact interface for quick use within host apps.
- Sine wave generation (20 Hz - 20 kHz)
- White, Pink, and Brown noise types
- Adjustable amplitude control
- Two AUv3 components (generator and effect)
- Parameter automation and preset storage
- Compact, dark user interface
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ToneNoise is a focused Audio Unit v3 plugin for iOS: a precise test and noise generator for production, sound design, and technical work. Whether you need a reference tone, spectrum analysis, or relaxing noise — ToneNoise delivers four clear signal types with a small set of straightforward controls. The interface is built for fast use inside your host app. FEATURES • Sine wave with adjustable frequency from 20 Hz to 20 kHz • White noise — evenly distributed across the full spectrum • Pink noise — more natural character (−3 dB per octave) • Brown noise — deeper, softer sound (−6 dB per octave) • Amplitude control from 0 to 100% • Two AUv3 components: generator (augn) and effect (aufx) • Parameter automation and preset storage in the host • Compact, dark user interface IDEAL FOR • Reference and measurement tones in mobile production • EQ and speaker checks • Noise source for sound design and experimentation • Quick test signals in AUM, GarageBand, and other AUv3 hosts HOW TO USE TONENOISE 1. Launch ToneNoise once on your device (registers the Audio Units). 2. Open it in your host, e.g. AUM: – as a generator: Generator channel → Audio Units → AuIm → ToneNoise – as an effect: Effect slot → Audio Units → AuIm → ToneNoise
Screenshots
Verdict
The clearest difference is rating: S at 4.5 against ToneNoise's 2.5. S also leads on in-app purchases (none vs 3). ToneNoise's advantage is update cadence (every 9 days vs every 6 weeks). On price, ratings volume, ads 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
Both are free to download. ToneNoise sells 3 one-off in-app purchases. S asks for nothing beyond the download.
S holds the better App Store score, 4.5 against 2.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively.
S ships an update every 6 weeks, ToneNoise every 9 days. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.
| Parameter | S | ToneNoise |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) — better | 2.5 (2 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 — better | 2 |
| Update frequency | Every 6 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 17 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Mathias Kirkerød | Norwin Palme |
In-app purchases
S
No in-app purchases
ToneNoise
- Small Tip$0.99
- Medium Tip$2.99
- Large Tip$3.99








