# ButterSynth vs Salome

The clearest difference is price: Salome at $7.99 against ButterSynth's $19.99. Salome also leads on rating (4.7 vs 4.0) and update cadence (every 9 days vs every 2 months). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

ButterSynth costs $19.99 and Salome $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Salome holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 63 and 30 respectively. Written reviews point the same way: 59% of ButterSynth's written reviews are positive against 83% of Salome's.

ButterSynth ships an update every 2 months, Salome every 9 days. Both last shipped on November 7, 2026.

## The numbers

| Metric | ButterSynth | Salome |
| --- | --- | --- |
| Price | $19.99 | **$7.99** |
| Rating | [4.0 (63 ratings)](https://appshunter.io/ios/app/buttersynth/id1497419006/reviews) | **[4.7 (30 ratings)](https://appshunter.io/ios/app/salome-mpe-audio-sampler/id6468663356/reviews)** |
| Number of ratings | **63** | 30 |
| Positive reviews | 59.2% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Paid | Paid |
| Size | 468 MB | 37 MB |
| Requires iOS | 14.0 | **13** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Arto Vaarala](https://appshunter.io/developer/890886114) | [Bram Bos](https://appshunter.io/developer/325340444) |

## What reviewers say

### ButterSynth

[App page](https://appshunter.io/ios/app/buttersynth/id1497419006)

This powerful synthesizer app offers a hybrid approach, combining wavetable, FM, and sample-based synthesis. Create unique sounds with a vast sonic range, advanced modulation, and a built-in effects rack. It caters to both experienced sound designers and beginners with extensive presets.

**Highlights:** Hybrid 6-oscillator synthesis (wavetable, FM, sample), Built-in wavetable editor, FM engine with 4 operators, Sample and Granulator engines, 32-slot modulation matrix, Internal FX rack with 16 modules, Extensive preset library

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ✨ Deep sound design capabilities
- 🎛️ Versatile modulation matrix
- 🔊 Great sound quality
- 💡 Innovative wavetable generator
- 🌟 Serum-like experience

**What reviewers complain about**

- 📱 Fiddly on small screens
- 🐛 Crashes frequently
- 🐛 Disappears in Cubasis
- 🐛 Spikes CPU usage
- 🐛 Crashes on patch change

**Reported bugs**

- App crashing with AUM
- Disappears in Cubasis randomly
- Crashes all the time inside Logic
- Changing a patch spikes CPU to 99%
- Crashes on every patch change

**Requested features**

- MPE popup possible on top of the auv3
- Button to hide built-in keyboard
- Buffer size option
- Additional MIDI mappings (e.g., arpeggiator toggle)
- Sustain pedal support


### Salome

[App page](https://appshunter.io/ios/app/salome-mpe-audio-sampler/id6468663356)

This app lets you record or import sounds, transform them into seamless loops, and play them polyphonically using MPE or MIDI controllers. It offers a fast workflow with onscreen keypads and MPE/MIDI input/output for creative sound manipulation.

**Highlights:** Record or import sounds, Create seamless loops, Polyphonic MPE/MIDI playback, Onscreen MPE keypads, Latch mode for fader control, AUv3 plugin for iOS and macOS

**In-app purchases:** none


## Frequently asked questions

### Is ButterSynth free?

ButterSynth costs $19.99, with no in-app purchases.

### Is Salome free?

Salome costs $7.99, with no in-app purchases.

### Which has better reviews, ButterSynth or Salome?

Salome is rated higher. ButterSynth averages 4.0 out of 5 from 63 ratings, while Salome averages 4.7 from 30 ratings.

### Do ButterSynth or Salome have ads?

Neither ButterSynth nor Salome shows ads.

### Which is updated more often, ButterSynth or Salome?

ButterSynth ships an update every 2 months, and Salome every 9 days. Most recently, ButterSynth was updated on November 7, 2026 and Salome on November 7, 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.*