# Scythe Synthesizer vs Theremini Advanced Software Editor

The clearest difference is price: Theremini Advanced Software Editor at Free against Scythe Synthesizer's $4.99. Theremini Advanced Software Editor also leads on iOS requirement (5.1.1 vs 26.0). Scythe Synthesizer's advantage is rating (4.6 vs 3.8) and review sentiment (77% vs 60%). On update cadence, ads, in-app purchases and device support there is nothing between them.

Theremini Advanced Software Editor is free to download; Scythe Synthesizer costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scythe Synthesizer holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Scythe Synthesizer has 131 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 77% of Scythe Synthesizer's written reviews are positive against 60% of Theremini Advanced Software Editor's.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 29, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Scythe Synthesizer | Theremini Advanced Software Editor |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.6 (131 ratings)](https://appshunter.io/ios/app/scythe-synthesizer/id451337446/reviews)** | [3.8 (13 ratings)](https://appshunter.io/ios/app/theremini-advanced-software-editor/id929763039/reviews) |
| Number of ratings | **131** | 13 |
| Positive reviews | **77.3% of reviews** | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Paid | **Free** |
| Size | 9 MB | 50 MB |
| Requires iOS | 26.0 | **5.1.1** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Miles Egan](https://appshunter.io/developer/423720312) | [Moog Music Inc.](https://appshunter.io/developer/396776421) |

## What reviewers say

### Scythe Synthesizer

[App page](https://appshunter.io/ios/app/scythe-synthesizer/id451337446)

Design new sounds with an intuitive interface on your iPad. This synthesizer offers a wide range of sonic possibilities, from classic analog tones to unique digital effects. Record and export your creations easily.

**Highlights:** Intuitive sound design interface, Versatile oscillators (analog & digital), Audio clip recording and export, Extensive modulation, Wide range of effects, MIDI support

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💡 Innovative bend feature
- 🎶 Great sound quality
- 🎛️ Intuitive interface
- 🎚️ Randomization function is a winner
- ✨ Unique and engaging sounds

**What reviewers complain about**

- 🐛 Distortion on iPad Pro
- 🐛 Glitched artifacts
- 🐛 Unintended distortion
- 🐛 Crackles on iPad Pro
- 🐛 Keyboard issues (delay, sizing)

**Reported bugs**

- Doesn't load AUM after update, crashes
- Crackle on iPad Pro
- Unintended distortion, glitched artifacts on iPad Pro
- Confirming distortion on every patch on iPad Pro 11 inch
- Bad digital distortion on iPad Pro 11 inch

**Requested features**

- Ability to choose MIDI channel
- Controllable randomization range
- More presets
- Bend modulation to loop
- Bend to be tempo synced


### Theremini Advanced Software Editor

[App page](https://appshunter.io/ios/app/theremini-advanced-software-editor/id929763039)

This application allows users to deeply customize and manage sounds for their Moog Theremini hardware synthesizer. It provides tools to create new presets, edit existing ones, and organize sound libraries. Users can also access an exclusive library of new presets to enhance their creative process.

**Highlights:** Create new presets, Edit existing presets, Craft new sounds in real-time, Manage preset libraries, Share sound libraries, Edit global settings

**In-app purchases:** none


## Frequently asked questions

### Is Scythe Synthesizer free?

Scythe Synthesizer costs $4.99, with no in-app purchases.

### Is Theremini Advanced Software Editor free?

Theremini Advanced Software Editor is free to download, with no in-app purchases.

### Which has better reviews, Scythe Synthesizer or Theremini Advanced Software Editor?

Scythe Synthesizer is rated higher. Scythe Synthesizer averages 4.6 out of 5 from 131 ratings, while Theremini Advanced Software Editor averages 3.8 from 13 ratings.

### Do Scythe Synthesizer or Theremini Advanced Software Editor have ads?

Neither Scythe Synthesizer nor Theremini Advanced Software Editor shows ads.

### Which is updated more often, Scythe Synthesizer or Theremini Advanced Software Editor?

Scythe Synthesizer ships an update every 4 months, and Theremini Advanced Software Editor every 4 months. Most recently, Scythe Synthesizer was updated on September 29, 2026 and Theremini Advanced Software Editor on June 1, 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.*