# Scythe Synthesizer vs DubFilter

The clearest difference is price: DubFilter at Free against Scythe Synthesizer's $4.99. DubFilter also leads on iOS requirement (17.0 vs 26.0). Scythe Synthesizer's advantage is in-app purchases (none vs 1). On rating, review sentiment, ratings volume and update cadence there is nothing between them.

DubFilter is free to download; Scythe Synthesizer costs $4.99 up front. DubFilter sells 1 one-off in-app purchase. Scythe Synthesizer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Scythe Synthesizer against 4.7 for DubFilter. Both are backed by a comparable volume of ratings — 134 and 71 respectively. Written reviews are what separate them: 77% of Scythe Synthesizer's written reviews are positive against 73% of DubFilter's.

Scythe Synthesizer ships an update every 4 months, DubFilter every 6 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Scythe Synthesizer | DubFilter |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.6 (134 ratings)](https://appshunter.io/ios/app/scythe-synthesizer/id451337446/reviews) | **[4.7 (71 ratings)](https://appshunter.io/ios/app/dubfilter/id979648058/reviews)** |
| Number of ratings | **134** | 71 |
| Positive reviews | **77.3% of reviews** | 73.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 9 MB | 12 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Miles Egan](https://appshunter.io/developer/423720312) | [Amazing Noises](https://appshunter.io/developer/903336421) |

## 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


### DubFilter

[App page](https://appshunter.io/ios/app/dubfilter/id979648058)

This app provides a powerful dual filter with resonance and an exclusive overlap parameter. It also features a redesigned stereo sample player with LFO and scrubbing, along with extensive MIDI and file management capabilities.

**Highlights:** Dual low-pass/high-pass filter, Resonance and Overlap parameter, Stereo sample player with LFO, Scrubbing capabilities, Audiobus and Inter-App Audio support, MIDI control and file management, Preset morphing pad

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Unit Plugin Support | $1.99 | one-time |


## Frequently asked questions

### Is Scythe Synthesizer free?

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

### Is DubFilter free?

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

### Which has better reviews, Scythe Synthesizer or DubFilter?

DubFilter is rated higher. Scythe Synthesizer averages 4.6 out of 5 from 134 ratings, while DubFilter averages 4.7 from 71 ratings.

### Do Scythe Synthesizer or DubFilter have ads?

Neither Scythe Synthesizer nor DubFilter shows ads.

### Which is updated more often, Scythe Synthesizer or DubFilter?

Scythe Synthesizer ships an update every 4 months, and DubFilter every 6 months. Most recently, Scythe Synthesizer was updated on November 1, 2026 and DubFilter on November 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.*