S vs Aureline
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.
Aureline
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Aurelineは、クラシックなアナログシンセの操作感と波形メモリ音源の個性を組み合わせた、8ボイス・ポリフォニックシンセサイザーです。 2基のオシレーター、フィルター、エンベロープ、LFO、POLY MOD、アルペジエーターを備え、温かいパッドや力強いベースから、デジタルなゲームサウンド、効果音まで幅広く作れます。 主な機能 ・8ボイス・ポリフォニー ・2オシレーター構成 ・アナログモデリング波形と波形メモリ ・波形を指で描けるWAVE EDIT ・POLY MOD ・フィルター/アンプ・エンベロープ ・LFO、アルペジエーター、コード、ホールド ・50音色ライブラリ ・音色ファイルとライブラリの保存/読み込み ・外部MIDI入力 ・AUv3 Instrument対応 スタンドアロンアプリとして本体の鍵盤から演奏できるほか、GarageBandなどの対応ホストではAUv3 Instrumentとして使用できます。
Screenshots
Verdict
The clearest difference is update cadence: Aureline at daily against S's every 6 weeks. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
S ships an update every 6 weeks, Aureline daily. The most recent releases landed on August 9, 2026 and September 18, 2026 respectively.
| Parameter | S | Aureline |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 17 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Mathias Kirkerød | Hideki Konishi |
In-app purchases
S
No in-app purchases
Aureline
No in-app purchases





