# OB vs Thereminator 2

The clearest difference is price: Thereminator 2 at $7.99 against OB's $19.99. Thereminator 2 also leads on rating (4.7 vs 4.1) and review sentiment (88% vs 75%). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

OB costs $19.99 and Thereminator 2 $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Thereminator 2 holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 15 and 14 respectively. Written reviews point the same way: 75% of OB's written reviews are positive against 88% of Thereminator 2's.

## The numbers

| Metric | OB | Thereminator 2 |
| --- | --- | --- |
| Price | $19.99 | **$7.99** |
| Rating | [4.1 (15 ratings)](https://appshunter.io/ios/app/ob-xd-3-auv3-synth/id6654915211/reviews) | **[4.7 (14 ratings)](https://appshunter.io/ios/app/thereminator-2/id6736556748/reviews)** |
| Number of ratings | **15** | 14 |
| Positive reviews | 75.0% of reviews | **87.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Paid | Paid |
| Size | 210 MB | 26 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DiscoDSP LLC](https://appshunter.io/developer/1465262828) | [Yonac Inc.](https://appshunter.io/developer/288670023) |

## What reviewers say

### OB

[App page](https://appshunter.io/ios/app/ob-xd-3-auv3-synth/id6654915211)

This app recreates a classic vintage synthesizer, offering rich, full-bodied tones for electronic music, recordings, and film scores. It features MPE support, an on-screen MIDI keyboard, and high-quality rendering for enhanced music production.

**Highlights:** Oberheim OB-X emulation, MPE support, On-screen MIDI keyboard, High-quality retina rendering, AUv3 improvements, Preset search with categories

**Features:** macOS Compatibility

**In-app purchases:** none


### Thereminator 2

[App page](https://appshunter.io/ios/app/thereminator-2/id6736556748)

This app brings the iconic theremin sound to your mobile device and computer. It offers touch-controlled virtual instrument capabilities with extensive sound shaping options and MPE support for DAWs.

**Highlights:** Touch-controlled virtual theremin, AUv3 instrument plugin, MPE protocol support, Over 50 factory presets, Virtual-Analog resonant filter, Modeled tape delay, 51 musical scales

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OB free?

OB costs $19.99, with no in-app purchases.

### Is Thereminator 2 free?

Thereminator 2 costs $7.99, with no in-app purchases.

### Which has better reviews, OB or Thereminator 2?

Thereminator 2 is rated higher. OB averages 4.1 out of 5 from 15 ratings, while Thereminator 2 averages 4.7 from 14 ratings.

### Do OB or Thereminator 2 have ads?

Neither OB nor Thereminator 2 shows ads.

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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.*