# SynthMaster Player vs SP6 Sound Editor

The clearest difference is in-app purchases: SP6 Sound Editor at none against SynthMaster Player's 13. SP6 Sound Editor also leads on iOS requirement (8.0 vs 11.0). SynthMaster Player's advantage is device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. SynthMaster Player sells 13 one-off in-app purchases. SP6 Sound Editor asks for nothing beyond the download.

SynthMaster Player ships an update every 3 months, SP6 Sound Editor every 5 months. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SynthMaster Player | SP6 Sound Editor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (55 ratings)](https://appshunter.io/ios/app/synthmaster-player/id944155926/reviews)** | — |
| Number of ratings | **55** | — |
| Positive reviews | 52.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 308 MB | 35 MB |
| Requires iOS | 11.0 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [KV331 Audio](https://appshunter.io/developer/944155925) | [SoundTower Inc.](https://appshunter.io/developer/757478129) |

## What reviewers say

### SynthMaster Player

[App page](https://appshunter.io/ios/app/synthmaster-player/id944155926)

This mobile synthesizer app provides a vast library of sounds for music production. It allows users to play presets, make limited edits, and access additional sound banks through in-app purchases. It integrates with other music apps and offers a built-in keyboard for immediate playability.

**Highlights:** Preset-based sound library, Limited parameter editing, XY pads for modulation, AUv3 and InterApp Audio support, Audiobus integration, Built-in keyboard with pitch/mod wheels, Scales functionality

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Historical Synth Giants Vol 1 | $1.99 | one-time |
| BigTone Signature Sounds Vol1 | $4.99 | one-time |
| MK Expansion 2 | $4.99 | one-time |
| Nori Ubukata Art Rock Basics | $4.99 | one-time |
| Sounds of the World | $4.99 | one-time |
| Factory Presets (PRO Upgrade) | $4.99 | one-time |
| SynthMaster 2.7 presets | $4.99 | one-time |
| SynthMaster 2.8 Presets | $4.99 | one-time |
| Extra Factory Presets Bundle | $9.99 | one-time |
| SynthMaster EDM Bundle 1 | $13.99 | one-time |
| Dawn Of Electronic Bundle | $13.99 | one-time |
| Synth Giants Bundle | $13.99 | one-time |
| Rob Lee EDM Bundle | $19.99 | one-time |

**What reviewers like**

- 🚀 Great sounds
- 👍 Fantastic presets
- 🚀 Excellent sound quality
- 👍 Inspiring sounds
- 👍 Rich and full synth sounds

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🐛 Buggy performance
- 🐛 Presets not loading
- 🐛 Unstable on newer devices
- 🐛 Compatibility issues

**Reported bugs**

- Crashes on startup
- Purchased presets not loading
- Stuck notes
- Incompatibility with newer iOS versions
- Audiobus and IAA issues

**Requested features**

- Ability to edit and create own sounds
- Improved preset management
- Better integration with DAWs and Audiobus
- Background playback support
- Larger on-screen keyboard


### SP6 Sound Editor

[App page](https://appshunter.io/ios/app/sp6-sound-editor/id1386180420)

**In-app purchases:** none


## Frequently asked questions

### Is SynthMaster Player free?

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

### Is SP6 Sound Editor free?

SP6 Sound Editor is free to download, with no in-app purchases.

### Do SynthMaster Player or SP6 Sound Editor have ads?

Neither SynthMaster Player nor SP6 Sound Editor shows ads.

### Which is updated more often, SynthMaster Player or SP6 Sound Editor?

SynthMaster Player ships an update every 3 months, and SP6 Sound Editor every 5 months. Most recently, SynthMaster Player was updated on September 24, 2026 and SP6 Sound Editor on September 10, 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.*