# Matrix Vocoder vs OLI

The clearest difference is price: OLI at Free against Matrix Vocoder's $5.99. OLI also leads on update cadence (every 2 weeks vs every 15 months). Matrix Vocoder's advantage is in-app purchases (none vs 3) and chart position (#178 vs unranked). On ads, device support and iOS requirement there is nothing between them.

OLI is free to download; Matrix Vocoder costs $5.99 up front. OLI sells 3 in-app purchases, starting at $2.99 per month. Matrix Vocoder asks for nothing beyond the download.

Matrix Vocoder ships an update every 15 months, OLI every 2 weeks. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Matrix Vocoder | OLI |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.3 (20 ratings)](https://appshunter.io/ios/app/matrix-vocoder/id1464318049/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Best chart rank | **#178** | — |
| Size | 9 MB | 14 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [Shankareswary THANGAVELOO](https://appshunter.io/developer/6808103301) |

## What reviewers say

### Matrix Vocoder

[App page](https://appshunter.io/ios/app/matrix-vocoder/id1464318049)

**Currently charting:** #178 Top Paid · Music (US App Store)

Transform your voice into an electronic instrument with this app, simulating classic analog vocoder sounds. It analyzes input signals, performs spectral analysis, and reassembles synthetic speech using filter banks and replacement signals.

**Highlights:** 32 channel filterbank with analog filters, Stereophonic synthesis with alias-free oscillators, External carrier input, Voiced/Unvoiced detection and pitch tracking, Formant shift, Patchbay for channel connection, 16 internal oscillators for choir sounds

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

**In-app purchases:** none


### OLI

[App page](https://appshunter.io/ios/app/oli-cymatics-lab/id6808103299)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OLI Pro — Monthly | $2.99 | per month |
| OLI Pro — Annual | $17.99 | per year |
| OLI Pro — Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is Matrix Vocoder free?

Matrix Vocoder costs $5.99, with no in-app purchases.

### Is OLI free?

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

### Do Matrix Vocoder or OLI have ads?

Neither Matrix Vocoder nor OLI shows ads.

### Which is updated more often, Matrix Vocoder or OLI?

Matrix Vocoder ships an update every 15 months, and OLI every 2 weeks. Most recently, Matrix Vocoder was updated on October 9, 2026 and OLI on October 15, 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.*