# SynthMaster Player vs UNO Synth Editor

The clearest difference is rating: SynthMaster Player at 4.4 against UNO Synth Editor's 3.8. SynthMaster Player also leads on review sentiment (52% vs 33%) and update cadence (every 3 months vs every 9 months). UNO Synth Editor's advantage is in-app purchases (none vs 13) and iOS requirement (9.3 vs 11.0). On price, ads and device support there is nothing between them.

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

SynthMaster Player holds the better App Store score, 4.4 against 3.8. That said, the two scores are not equally well evidenced: SynthMaster Player has 55 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 52% of SynthMaster Player's written reviews are positive against 33% of UNO Synth Editor's.

SynthMaster Player ships an update every 3 months, UNO Synth Editor every 9 months. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SynthMaster Player | UNO Synth Editor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (55 ratings)](https://appshunter.io/ios/app/synthmaster-player/id944155926/reviews)** | [3.8 (11 ratings)](https://appshunter.io/ios/app/uno-synth-editor/id1401362007/reviews) |
| Number of ratings | **55** | 11 |
| Positive reviews | **52.1% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 308 MB | 8 MB |
| Requires iOS | 11.0 | **9.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KV331 Audio](https://appshunter.io/developer/944155925) | [IK Multimedia US, LLC](https://appshunter.io/developer/323694278) |

## 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


### UNO Synth Editor

[App page](https://appshunter.io/ios/app/uno-synth-editor/id1401362007)

This app provides advanced control for a specific analog synthesizer, allowing users to manage presets, shape sounds, and configure global and MIDI settings. It offers access to all synth engine elements and includes artist-created presets for inspiration.

**Highlights:** Preset management and transfer, Full control over synth engine, Sound shaping with envelopes and LFOs, Arpeggiator and keyboard controls, Global and MIDI settings configuration, Artist preset library

**In-app purchases:** none


## Frequently asked questions

### Is SynthMaster Player free?

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

### Is UNO Synth Editor free?

UNO Synth Editor is free to download, with no in-app purchases.

### Which has better reviews, SynthMaster Player or UNO Synth Editor?

SynthMaster Player is rated higher. SynthMaster Player averages 4.4 out of 5 from 55 ratings, while UNO Synth Editor averages 3.8 from 11 ratings.

### Do SynthMaster Player or UNO Synth Editor have ads?

Neither SynthMaster Player nor UNO Synth Editor shows ads.

### Which is updated more often, SynthMaster Player or UNO Synth Editor?

SynthMaster Player ships an update every 3 months, and UNO Synth Editor every 9 months. Most recently, SynthMaster Player was updated on October 5, 2026 and UNO Synth Editor on October 9, 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.*