# UNO Synth Editor vs RRS Ivoks

The clearest difference is rating: RRS Ivoks at 4.4 against UNO Synth Editor's 3.8. RRS Ivoks also leads on review sentiment (63% vs 33%) and update cadence (fortnightly vs every 9 months). UNO Synth Editor's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. RRS Ivoks sells 1 one-off in-app purchase. UNO Synth Editor asks for nothing beyond the download.

RRS Ivoks holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 12 and 46 respectively. Written reviews point the same way: 33% of UNO Synth Editor's written reviews are positive against 63% of RRS Ivoks's.

UNO Synth Editor ships an update every 9 months, RRS Ivoks fortnightly. Both last shipped on October 21, 2026.

## The numbers

| Metric | UNO Synth Editor | RRS Ivoks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (12 ratings)](https://appshunter.io/ios/app/uno-synth-editor/id1401362007/reviews) | **[4.4 (46 ratings)](https://appshunter.io/ios/app/rrs-ivoks/id6443504248/reviews)** |
| Number of ratings | 12 | **46** |
| Positive reviews | 33.3% of reviews | **63.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 19 MB |
| Requires iOS | **9.3** | 10.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IK Multimedia US, LLC](https://appshunter.io/developer/323694278) | [RRS, OOO](https://appshunter.io/developer/1486125568) |

## What reviewers say

### 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


### RRS Ivoks

[App page](https://appshunter.io/ios/app/rrs-ivoks/id6443504248)

This app emulates analog synthesizers, offering a range of sound shaping tools including oscillators, filters, and amplifiers. It supports AUv3 hosting for integration with music production apps and provides extensive MIDI control.

**Highlights:** Analog Emulation, AUv3 Compatible, Dual Oscillators, Filter Block with ADSR, Amplifier Block with ADSR, Modulation (LFO) Controls, MIDI CC Implementation

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RRS Ivoks Unlimited | $8.99 | one-time |


## Frequently asked questions

### Is UNO Synth Editor free?

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

### Is RRS Ivoks free?

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

### Which has better reviews, UNO Synth Editor or RRS Ivoks?

RRS Ivoks is rated higher. UNO Synth Editor averages 3.8 out of 5 from 12 ratings, while RRS Ivoks averages 4.4 from 46 ratings.

### Do UNO Synth Editor or RRS Ivoks have ads?

Neither UNO Synth Editor nor RRS Ivoks shows ads.

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

UNO Synth Editor ships an update every 9 months, and RRS Ivoks fortnightly. Most recently, UNO Synth Editor was updated on October 21, 2026 and RRS Ivoks on October 21, 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.*