# Addictive Pro vs ButterSynth

The clearest difference is price: Addictive Pro at $5.99 against ButterSynth's $19.99. Addictive Pro also leads on rating (4.7 vs 4.0) and update cadence (every 2 weeks vs every 2 months). ButterSynth's advantage is chart position (#190 vs unranked) and device support (3 vs 1). On ads, in-app purchases and monetization model there is nothing between them.

Addictive Pro costs $5.99 and ButterSynth $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Addictive Pro holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 18 and 62 respectively. Written reviews point the same way: 75% of Addictive Pro's written reviews are positive against 60% of ButterSynth's.

Addictive Pro ships an update every 2 weeks, ButterSynth every 2 months. The most recent releases landed on June 11, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Addictive Pro | ButterSynth |
| --- | --- | --- |
| Price | **$5.99** | $19.99 |
| Rating | **[4.7 (18 ratings)](https://appshunter.io/ios/app/addictive-pro/id1130398188/reviews)** | [4.0 (62 ratings)](https://appshunter.io/ios/app/buttersynth/id1497419006/reviews) |
| Number of ratings | 18 | **62** |
| Positive reviews | **75.0% of reviews** | 59.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Paid | Paid |
| Best chart rank | — | **#190** |
| Size | 58 MB | 468 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [Arto Vaarala](https://appshunter.io/developer/890886114) |

## What reviewers say

### Addictive Pro

[App page](https://appshunter.io/ios/app/addictive-pro/id1130398188)

This app offers a powerful hybrid synthesis engine for creating complex and dynamic sounds. Explore wavetable, noise, virtual analog, and FM synthesis with extensive modulation and effects. It includes a polyrhythm arpeggiator and real-time control options for musical inspiration and sound design.

**Highlights:** Hybrid synthesis engine, Wavetable spectrum synthesis, Virtual Analog synthesis, Polyrhythm Arpeggiator, Real-time parameter control, Studio-standard effects section, AudioUnit Instrument support

**In-app purchases:** none


### ButterSynth

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

**Currently charting:** #190 Top Paid · Music (US App Store)

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


## Frequently asked questions

### Is Addictive Pro free?

Addictive Pro costs $5.99, with no in-app purchases.

### Is ButterSynth free?

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

### Which has better reviews, Addictive Pro or ButterSynth?

Addictive Pro is rated higher. Addictive Pro averages 4.7 out of 5 from 18 ratings, while ButterSynth averages 4.0 from 62 ratings.

### Do Addictive Pro or ButterSynth have ads?

Neither Addictive Pro nor ButterSynth shows ads.

### Which is updated more often, Addictive Pro or ButterSynth?

Addictive Pro ships an update every 2 weeks, and ButterSynth every 2 months. Most recently, Addictive Pro was updated on June 11, 2026 and ButterSynth on September 16, 2026.

---

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