# Speak Unit vs Marimba

The clearest difference is update cadence: Marimba at every 10 months against Speak Unit's every 52 months. Marimba also leads on rating (5.0 vs 4.8). Speak Unit's advantage is ratings volume (9 vs 1) and price ($0.99 vs $2.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Speak Unit costs $0.99 and Marimba $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Marimba holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Speak Unit has 9 ratings behind it against 1, so its average is the more settled of the two.

Speak Unit ships an update every 52 months, Marimba every 10 months. The most recent releases landed on September 17, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | Speak Unit | Marimba |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | [4.8 (9 ratings)](https://appshunter.io/ios/app/speak-unit/id1261498777/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/marimba/id6475635974/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 52 months | **Every 10 months** |
| Monetization | Paid | Paid |
| Size | 153 MB | 92 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rick Peacock](https://appshunter.io/developer/286052385) | [Mellowmuse Ltd](https://appshunter.io/developer/425710925) |

## What reviewers say

### Speak Unit

[App page](https://appshunter.io/ios/app/speak-unit/id1261498777)

This audio extension synthesizes speech for music production. Input up to twelve phrases, each triggered by a specific musical note, to add robotic vocals to your compositions. It's ideal for creating unique vocal effects in music software.

**Highlights:** Speech synthesis audio extension, Phrase input up to twelve entries, Note-triggered phrase playback, Voice selection, Standalone app for auditioning

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

**In-app purchases:** none


### Marimba

[App page](https://appshunter.io/ios/app/marimba/id6475635974)

This app offers a high-quality sampled marimba instrument for iOS devices. It functions as a standalone application or an AUv3 plugin, featuring adjustable keyboard settings and built-in effects like reverb and delay. It supports external MIDI input for enhanced musical expression.

**Highlights:** Standalone app and AUv3 plugin, High-quality sample-based marimba, Configurable keyboard, Reverb and delay effects, MIDI input support, Mac support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Speak Unit free?

Speak Unit costs $0.99, with no in-app purchases.

### Is Marimba free?

Marimba costs $2.99, with no in-app purchases.

### Which has better reviews, Speak Unit or Marimba?

Marimba is rated higher. Speak Unit averages 4.8 out of 5 from 9 ratings, while Marimba averages 5.0 from 1 ratings.

### Do Speak Unit or Marimba have ads?

Neither Speak Unit nor Marimba shows ads.

### Which is updated more often, Speak Unit or Marimba?

Speak Unit ships an update every 52 months, and Marimba every 10 months. Most recently, Speak Unit was updated on September 17, 2026 and Marimba on August 25, 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.*