# ButterSynth vs keyboaredo

The clearest difference is review sentiment: ButterSynth at 59% against keyboaredo's 0%. ButterSynth also leads on ratings volume (63 vs 3). keyboaredo's advantage is price ($2.99 vs $19.99) and rating (4.3 vs 4.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

ButterSynth costs $19.99 and keyboaredo $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

keyboaredo holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: ButterSynth has 63 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 59% of ButterSynth's written reviews are positive against 0% of keyboaredo's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | ButterSynth | keyboaredo |
| --- | --- | --- |
| Price | $19.99 | **$2.99** |
| Rating | [4.0 (63 ratings)](https://appshunter.io/ios/app/buttersynth/id1497419006/reviews) | **[4.3 (3 ratings)](https://appshunter.io/ios/app/keyboaredo/id6444124951/reviews)** |
| Number of ratings | **63** | 3 |
| Positive reviews | **59.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | Paid |
| Size | 468 MB | 11 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Arto Vaarala](https://appshunter.io/developer/890886114) | [Alexey Nadzharov](https://appshunter.io/developer/729549192) |

## 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


### keyboaredo

[App page](https://appshunter.io/ios/app/keyboaredo/id6444124951)

This app functions as a microtonal MIDI keyboard, supporting various Equal Division of the Octave (EDO) settings. It is a MIDI effect that requires a separate synth for sound production, ideally one that handles pitch-bend per MIDI channel.

**Highlights:** Microtonal MIDI keyboard, Supports EDO settings, AUv3 MIDI effect, Pitch-bend handling support, Requires external synth for sound

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ButterSynth free?

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

### Is keyboaredo free?

keyboaredo costs $2.99, with no in-app purchases.

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

keyboaredo is rated higher. ButterSynth averages 4.0 out of 5 from 63 ratings, while keyboaredo averages 4.3 from 3 ratings.

### Do ButterSynth or keyboaredo have ads?

Neither ButterSynth nor keyboaredo shows ads.

---

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