# Theremini Advanced Software Editor vs MidiQuesti

The clearest difference is review sentiment: Theremini Advanced Software Editor at 60% against MidiQuesti's 10%. Theremini Advanced Software Editor also leads on rating (3.8 vs 1.5) and in-app purchases (none vs 10). MidiQuesti's advantage is update cadence (weekly vs every 4 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. MidiQuesti sells 10 one-off in-app purchases. Theremini Advanced Software Editor asks for nothing beyond the download.

Theremini Advanced Software Editor holds the better App Store score, 3.8 against 1.5. Both are backed by a comparable volume of ratings — 13 and 11 respectively. Written reviews point the same way: 60% of Theremini Advanced Software Editor's written reviews are positive against 10% of MidiQuesti's.

Theremini Advanced Software Editor ships an update every 4 months, MidiQuesti weekly. The most recent releases landed on June 1, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | Theremini Advanced Software Editor | MidiQuesti |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (13 ratings)](https://appshunter.io/ios/app/theremini-advanced-software-editor/id929763039/reviews)** | [1.5 (11 ratings)](https://appshunter.io/ios/app/midiquesti/id1271850367/reviews) |
| Number of ratings | **13** | 11 |
| Positive reviews | **60.0% of reviews** | 10.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | **Free** | Paid |
| Size | 50 MB | 54 MB |
| Requires iOS | **5.1.1** | 10.3 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Moog Music Inc.](https://appshunter.io/developer/396776421) | [Sound Quest](https://appshunter.io/developer/1271850366) |

## 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


### MidiQuesti

[App page](https://appshunter.io/ios/app/midiquesti/id1271850367)

This app is a comprehensive MIDI SysEx editor and librarian for managing and organizing patches, banks, and other data from a vast array of MIDI instruments. It offers advanced editing capabilities, real-time parameter control, and the ability to manage multiple devices simultaneously.

**Highlights:** Supports 900+ MIDI instruments from 50+ manufacturers, Store, organize, and edit banks and patches, Multi-instrument and multi-port support, Real-time parameter editing, Drag and drop bank editing, Import/export .syx and .mid files, Block Copy/Swap for parameter groups

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yamaha Reface CP | $35.99 | one-time |
| Yamaha Reface CS | $35.99 | one-time |
| Yamaha Reface DX | $35.99 | one-time |
| Yamaha Reface YC | $35.99 | one-time |
| Akai Pro EWI4000S | $49.99 | one-time |
| Korg DW-8000 | $49.99 | one-time |
| Waldorf Blofeld | $49.99 | one-time |
| Waldorf Blofeld Keyboard | $49.99 | one-time |
| Korg M3/R | $89.99 | one-time |
| MQi v1 All Instrument License | $249.99 | 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 MidiQuesti free?

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

### Which has better reviews, Theremini Advanced Software Editor or MidiQuesti?

Theremini Advanced Software Editor is rated higher. Theremini Advanced Software Editor averages 3.8 out of 5 from 13 ratings, while MidiQuesti averages 1.5 from 11 ratings.

### Do Theremini Advanced Software Editor or MidiQuesti have ads?

Neither Theremini Advanced Software Editor nor MidiQuesti shows ads.

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

Theremini Advanced Software Editor ships an update every 4 months, and MidiQuesti weekly. Most recently, Theremini Advanced Software Editor was updated on June 1, 2026 and MidiQuesti on June 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.*