Synthesizer Sim vs Aureline
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synthesizer Sim
Transform your device into a versatile synthesizer with extensive sound-shaping capabilities. Explore a wide range of waveforms, envelopes, and effects. Record and share your musical creations as WAV files.
- Multiple oscillators and waveforms
- Extensive envelope and LFO modulation
- Built-in distortion, EQ, chorus, delay, reverb
- Responsive keyboard with MIDI support
- Poly, mono, and legato voice modes
- Customizable scales and tunings
- Performance recording and WAV export
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Turn your iPhone or iPad into an expressive synthesizer. Shape original sounds, play with touch or an external MIDI controller, and capture performances for later playback or WAV sharing. SYNTHESIZE YOUR SOUND • Three oscillators plus a sub oscillator • Six waveforms, unison, detune, mixer and stereo pan controls • Amp and filter envelopes with low-pass, high-pass, band-pass and notch modes • Distortion, EQ, chorus, delay and reverb • Two LFOs for pitch, amplitude and filter modulation PLAY AND CONTROL • Responsive keyboard with velocity, sustain, pitch bend and transpose • Poly, mono and legato voice modes with glide • USB, Bluetooth and network MIDI input • MIDI note, velocity, pitch bend and common controller support PRESETS AND TUNING • 96 factory presets for pads, leads, basses and more • Save your own User presets • Western, world and makam scales • Adjustable root, A4 reference and per-note cent offsets • Save custom User tunings RECORD AND SHARE • Record synth performances without microphone access • Replay saved performances with their sound and tuning settings • Export and share recordings as WAV files FREE AND PREMIUM The free version includes 10 factory presets, up to three User presets and tunings, one saved performance, and optional rewarded access to additional sounds. It may display ads. Premium removes ads and unlocks all 96 factory presets, unlimited User presets and tunings, and unlimited saved performances. Choose a monthly or yearly auto-renewing subscription, or a one-time lifetime purchase. Purchases are managed through your App Store account and can be restored in the app. Terms of Use: https://alyakastudio.com/terms/ Privacy Policy: https://alyakastudio.com/privacy-policy/
Aureline
This app is an 8-voice polyphonic synthesizer that combines the feel of classic analog synths with the unique character of waveform memory sound sources. It offers a wide range of sound creation capabilities, from warm pads and powerful basses to digital game sounds and sound effects.
- 8-voice polyphony
- Dual oscillator configuration
- Analog modeling and waveform memory
- WAVE EDIT for drawing waveforms
- POLY MOD
- Filter/Amp Envelope
- LFO, Arpeggiator, Chord, Hold
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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 in-app purchases: Aureline at none against Synthesizer Sim's 3. Aureline also leads on ads (none vs shown) and update cadence (daily vs every 2 months). Synthesizer Sim's advantage is device support (3 vs 1). On price, ratings volume 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
Both are free to download. Synthesizer Sim sells 3 in-app purchases, starting at $2.99 per month. Aureline asks for nothing beyond the download.
Aureline holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 16 and 7 respectively.
Synthesizer Sim ships an update every 2 months, Aureline daily. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.
| Parameter | Synthesizer Sim | Aureline |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (16 ratings) | 4.7 (7 ratings) — better |
| Number of ratings | 16 — better | 7 |
| Update frequency | Every 2 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 54 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Alper Kahriman | Hideki Konishi |
In-app purchases
Synthesizer Sim
- Premium Monthly$2.991 Month
- Premium Yearly7 Days trial$14.991 Year
- Lifetime Premium$29.99
Aureline
No in-app purchases









