# Theremini Advanced Software Editor vs RRS Ivoks

The clearest difference is rating: RRS Ivoks at 4.4 against Theremini Advanced Software Editor's 3.8. RRS Ivoks also leads on update cadence (fortnightly vs every 4 months) and device support (3 vs 1). Theremini Advanced Software Editor's advantage is in-app purchases (none vs 1) and iOS requirement (5.1.1 vs 10.0). On price, review sentiment and ads there is nothing between them.

Both are free to download. RRS Ivoks sells 1 one-off in-app purchase. Theremini Advanced Software 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 — 13 and 45 respectively. Written reviews point the same way: 60% of Theremini Advanced Software Editor's written reviews are positive against 63% of RRS Ivoks's.

Theremini Advanced Software Editor ships an update every 4 months, RRS Ivoks fortnightly. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Theremini Advanced Software Editor | RRS Ivoks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (13 ratings)](https://appshunter.io/ios/app/theremini-advanced-software-editor/id929763039/reviews) | **[4.4 (45 ratings)](https://appshunter.io/ios/app/rrs-ivoks/id6443504248/reviews)** |
| Number of ratings | 13 | **45** |
| Positive reviews | 60.0% of reviews | **63.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 50 MB | 19 MB |
| Requires iOS | **5.1.1** | 10.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Moog Music Inc.](https://appshunter.io/developer/396776421) | [RRS, OOO](https://appshunter.io/developer/1486125568) |

## What reviewers say

### Theremini Advanced Software Editor

[App page](https://appshunter.io/ios/app/theremini-advanced-software-editor/id929763039)

This application allows users to deeply customize and manage sounds for their Moog Theremini hardware synthesizer. It provides tools to create new presets, edit existing ones, and organize sound libraries. Users can also access an exclusive library of new presets to enhance their creative process.

**Highlights:** Create new presets, Edit existing presets, Craft new sounds in real-time, Manage preset libraries, Share sound libraries, Edit global settings

**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 Theremini Advanced Software Editor free?

Theremini Advanced Software 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, Theremini Advanced Software Editor or RRS Ivoks?

RRS Ivoks is rated higher. Theremini Advanced Software Editor averages 3.8 out of 5 from 13 ratings, while RRS Ivoks averages 4.4 from 45 ratings.

### Do Theremini Advanced Software Editor or RRS Ivoks have ads?

Neither Theremini Advanced Software Editor nor RRS Ivoks shows ads.

### Which is updated more often, Theremini Advanced Software Editor or RRS Ivoks?

Theremini Advanced Software Editor ships an update every 4 months, and RRS Ivoks fortnightly. Most recently, Theremini Advanced Software Editor was updated on October 16, 2026 and RRS Ivoks on October 17, 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.*