# Viking Synth vs UNO Synth Editor

The clearest difference is price: UNO Synth Editor at Free against Viking Synth's $3.99. UNO Synth Editor also leads on iOS requirement (9.3 vs 12.0). Viking Synth's advantage is rating (4.7 vs 3.8) and review sentiment (71% vs 33%). On ads, in-app purchases and device support there is nothing between them.

UNO Synth Editor is free to download; Viking Synth costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Viking Synth holds the better App Store score, 4.7 against 3.8. Both are backed by a comparable volume of ratings — 42 and 11 respectively. Written reviews point the same way: 71% of Viking Synth's written reviews are positive against 33% of UNO Synth Editor's.

Viking Synth ships an update every 4 months, UNO Synth Editor every 9 months. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Viking Synth | UNO Synth Editor |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.7 (42 ratings)](https://appshunter.io/ios/app/viking-synth/id1085274012/reviews)** | [3.8 (11 ratings)](https://appshunter.io/ios/app/uno-synth-editor/id1401362007/reviews) |
| Number of ratings | **42** | 11 |
| Positive reviews | **71.2% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | Paid | **Free** |
| Size | 11 MB | 8 MB |
| Requires iOS | 12.0 | **9.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blamsoft, Inc.](https://appshunter.io/developer/1051938244) | [IK Multimedia US, LLC](https://appshunter.io/developer/323694278) |

## What reviewers say

### Viking Synth

[App page](https://appshunter.io/ios/app/viking-synth/id1085274012)

This app emulates a classic monophonic analog synthesizer with advanced DSP technology. It features three variable wave oscillators, dual ladder filters, an LFO, and two modulation busses for versatile sound design.  An intuitive interface and extensive preset library make it ideal for creating thick bass and rich lead sounds.

**Highlights:** Three continuously variable wave oscillators, Dual ladder filters (Lowpass/Highpass), Multi-wave LFO, Two modulation busses, Intuitive user interface with expandable controls, 228 presets including Bass, Lead, and Synthwave, State-of-the-art DSP for authentic sound

**In-app purchases:** none

**What reviewers like**

- 🎶 Great sound quality
- 💡 Versatile sound options
- 💰 Excellent value (free)
- 💻 Lightweight and efficient
- 🎹 Good for learning synthesis

**What reviewers complain about**

- ❓ Preset issues
- 🔌 Not a standalone app
- 🐛 Occasional crashes
- 💾 Settings not saving
- 🤷‍♂️ Difficult to find/use

**Reported bugs**

- Presets not showing up
- Presets disappear
- App not showing in AUv3 menu
- Settings not saving after iOS 14 update
- Crashes when opening presets browser

**Requested features**

- More subtle drive mode
- Categorized preset browser
- Polyphony option
- Dark mode
- More apps from developer


### 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 Viking Synth free?

Viking Synth costs $3.99, with no in-app purchases.

### Is UNO Synth Editor free?

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

### Which has better reviews, Viking Synth or UNO Synth Editor?

Viking Synth is rated higher. Viking Synth averages 4.7 out of 5 from 42 ratings, while UNO Synth Editor averages 3.8 from 11 ratings.

### Do Viking Synth or UNO Synth Editor have ads?

Neither Viking Synth nor UNO Synth Editor shows ads.

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

Viking Synth ships an update every 4 months, and UNO Synth Editor every 9 months. Most recently, Viking Synth was updated on October 12, 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.*