# LUMEN vs Stochastic Lab

The clearest difference is price: LUMEN at Free against Stochastic Lab's $7.99. Stochastic Lab's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

LUMEN is free to download; Stochastic Lab costs $7.99 up front. LUMEN sells 1 one-off in-app purchase. Stochastic Lab asks for nothing beyond the download.

## The numbers

| Metric | LUMEN | Stochastic Lab |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 4 MB | 180 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Echelon Audio](https://appshunter.io/developer/6806892357) | [Martin Adler](https://appshunter.io/developer/1896354791) |

## What reviewers say

### LUMEN

[App page](https://appshunter.io/ios/app/lumen-loudness-meter/id6806892318)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LUMEN Pro | $12.99 | one-time |


### Stochastic Lab

[App page](https://appshunter.io/ios/app/stochastic-lab/id6809621751)

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

**In-app purchases:** none


## Frequently asked questions

### Is LUMEN free?

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

### Is Stochastic Lab free?

Stochastic Lab costs $7.99, with no in-app purchases.

### Do LUMEN or Stochastic Lab have ads?

Neither LUMEN nor Stochastic Lab 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.*