# Luminis Light Meter vs SlowLightMeter

The clearest difference is ads: SlowLightMeter at none against Luminis Light Meter's shown. SlowLightMeter also leads on update cadence (every 4 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Luminis Light Meter ships an update every 2 weeks, SlowLightMeter every 4 days. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Luminis Light Meter | SlowLightMeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/slowlightmeter/id6751812869/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | — | Free |
| Size | 28 MB | 1 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Dejan Boras](https://appshunter.io/developer/1612985659) | [Ari Jaaksi](https://appshunter.io/developer/1770069317) |

## What reviewers say

### Luminis Light Meter

[App page](https://appshunter.io/ios/app/luminis-light-meter/id6670429300)

**Features:** macOS Compatibility

**In-app purchases:** none


### SlowLightMeter

[App page](https://appshunter.io/ios/app/slowlightmeter/id6751812869)

This app provides a simple and accurate light meter for film photographers. It continuously measures light with minimal interaction and includes an ISO lock to prevent accidental changes. EV values are a core feature for ease of use.

**Highlights:** Reflective and incident light metering, Continuous light measurement, ISO lock, EV value display, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Luminis Light Meter free?

Luminis Light Meter is free to download, with no in-app purchases.

### Is SlowLightMeter free?

SlowLightMeter is free to download, with no in-app purchases.

### Do Luminis Light Meter or SlowLightMeter have ads?

Luminis Light Meter shows ads; SlowLightMeter does not.

### Which is updated more often, Luminis Light Meter or SlowLightMeter?

Luminis Light Meter ships an update every 2 weeks, and SlowLightMeter every 4 days. Most recently, Luminis Light Meter was updated on September 14, 2026 and SlowLightMeter on September 18, 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.*