# Synthesizer Sim vs Aureline

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.

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.

## The numbers

| Metric | Synthesizer Sim | Aureline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (16 ratings)](https://appshunter.io/ios/app/synthesizer-sim/id6740828486/reviews) | **[4.7 (7 ratings)](https://appshunter.io/ios/app/aureline/id6794556772/reviews)** |
| Number of ratings | **16** | 7 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 54 MB | 4 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alper Kahriman](https://appshunter.io/developer/1054578352) | [Hideki Konishi](https://appshunter.io/developer/6790603370) |

## What reviewers say

### Synthesizer Sim

[App page](https://appshunter.io/ios/app/synthesizer-sim/id6740828486)

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.

**Highlights:** 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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $14.99 | per year |
| Lifetime Premium | $29.99 | one-time |


### Aureline

[App page](https://appshunter.io/ios/app/aureline/id6794556772)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Synthesizer Sim free?

Synthesizer Sim is free to download, with in-app purchases available.

### Is Aureline free?

Aureline is free to download, with no in-app purchases.

### Which has better reviews, Synthesizer Sim or Aureline?

Aureline is rated higher. Synthesizer Sim averages 4.3 out of 5 from 16 ratings, while Aureline averages 4.7 from 7 ratings.

### Do Synthesizer Sim or Aureline have ads?

Synthesizer Sim shows ads; Aureline does not.

### Which is updated more often, Synthesizer Sim or Aureline?

Synthesizer Sim ships an update every 2 months, and Aureline daily. Most recently, Synthesizer Sim was updated on November 8, 2026 and Aureline on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*