# logSPL vs Lumen Layout

The clearest difference is review sentiment: logSPL at 100% against Lumen Layout's 50%. logSPL also leads on rating (5.0 vs 1.0) and price ($1.99 vs $4.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

logSPL costs $1.99 and Lumen Layout $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

logSPL holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of logSPL's written reviews are positive against 50% of Lumen Layout's.

logSPL ships an update every 4 months, Lumen Layout every 2 months. The most recent releases landed on September 6, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | logSPL | Lumen Layout |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/logspl/id491999427/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/lumen-layout/id6739475851/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 1 MB | 5 MB |
| Requires iOS | **15.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fabien Lefebvre](https://appshunter.io/developer/338004167) | [The Sparky](https://appshunter.io/developer/1747077864) |

## What reviewers say

### logSPL

[App page](https://appshunter.io/ios/app/logspl/id491999427)

This app functions as a sophisticated sound level meter, offering both basic and advanced features for measuring noise. It allows users to adjust update rates, select weighting types, and view historical data and real-time histograms. Calibration is recommended for optimal accuracy.

**Highlights:** Sound level measurement, Adjustable update rates (fast/slow), Weighting options (A, C, Z), Min/max value monitoring, Average value computation (Leq), Historical curve with grid, Real-time histogram, Dosemetering capabilities

**Features:** Vision Pro support

**In-app purchases:** none


### Lumen Layout

[App page](https://appshunter.io/ios/app/lumen-layout/id6739475851)

This app helps calculate pot light layouts for rooms. It offers both basic and advanced modes for quick or precise planning, providing a clear results page with light coordinates and spacing diagrams.

**Highlights:** Pot light layout calculation, Basic and advanced modes, Customizable room dimensions, Light spacing options, Results page with coordinates, Diagram for reference

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

**In-app purchases:** none


## Frequently asked questions

### Is logSPL free?

logSPL costs $1.99, with no in-app purchases.

### Is Lumen Layout free?

Lumen Layout costs $4.99, with no in-app purchases.

### Which has better reviews, logSPL or Lumen Layout?

logSPL is rated higher. logSPL averages 5.0 out of 5 from 1 ratings, while Lumen Layout averages 1.0 from 1 ratings.

### Do logSPL or Lumen Layout have ads?

Neither logSPL nor Lumen Layout shows ads.

### Which is updated more often, logSPL or Lumen Layout?

logSPL ships an update every 4 months, and Lumen Layout every 2 months. Most recently, logSPL was updated on September 6, 2026 and Lumen Layout on September 22, 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.*