# Theremin Synth vs Kalimba Pro

The clearest difference is update cadence: Theremin Synth at every 2 months against Kalimba Pro's every 20 months. Theremin Synth also leads on iOS requirement (12.1 vs 15.0). Kalimba Pro's advantage is price ($0.99 vs $2.99). On ads, in-app purchases and device support there is nothing between them.

Theremin Synth costs $2.99 and Kalimba Pro $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Theremin Synth ships an update every 2 months, Kalimba Pro every 20 months. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Theremin Synth | Kalimba Pro |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[3.2 (6 ratings)](https://appshunter.io/ios/app/theremin-synth-record-and-loop/id1104816326/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 63.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 20 months |
| Monetization | Paid | — |
| Size | 1 MB | 20 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Luke Phillips](https://appshunter.io/developer/1104816325) | [Dmytro Denys](https://appshunter.io/developer/429279016) |

## What reviewers say

### Theremin Synth

[App page](https://appshunter.io/ios/app/theremin-synth-record-and-loop/id1104816326)

Create unique soundscapes with this multitouch synthesizer. Record, loop, and overdub your creations, then export them as WAV files to share. Experiment with various waveforms and effects for endless sonic possibilities.

**Highlights:** Multitouch synthesis, Record, loop, and overdub, Adjustable delay, feedback, and scuzz effects, Four waveform options, Export recordings as WAV files, Offline functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Kalimba Pro

[App page](https://appshunter.io/ios/app/kalimba-pro/id1645521190)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Theremin Synth free?

Theremin Synth costs $2.99, with no in-app purchases.

### Is Kalimba Pro free?

Kalimba Pro costs $0.99, with no in-app purchases.

### Do Theremin Synth or Kalimba Pro have ads?

Neither Theremin Synth nor Kalimba Pro shows ads.

### Which is updated more often, Theremin Synth or Kalimba Pro?

Theremin Synth ships an update every 2 months, and Kalimba Pro every 20 months. Most recently, Theremin Synth was updated on October 16, 2026 and Kalimba Pro on October 20, 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.*