# LightMeter Express vs SlowLightMeter

The clearest difference is in-app purchases: SlowLightMeter at none against LightMeter Express's 1. SlowLightMeter also leads on review sentiment (100% vs 88%) and iOS requirement (15.6 vs 17.6). LightMeter Express's advantage is update cadence (daily vs every 4 days) and ratings volume (8 vs 2). On price, rating, ads and device support there is nothing between them.

Both are free to download. LightMeter Express sells 1 one-off in-app purchase. SlowLightMeter asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for LightMeter Express against 5.0 for SlowLightMeter. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews are what separate them: 88% of LightMeter Express's written reviews are positive against 100% of SlowLightMeter's.

LightMeter Express ships an update daily, SlowLightMeter every 4 days. The most recent releases landed on September 27, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | LightMeter Express | SlowLightMeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/lightmeter-express/id6748661409/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/slowlightmeter/id6751812869/reviews) |
| Number of ratings | **8** | 2 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 4 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 4 MB | 1 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Digitaino LLC](https://appshunter.io/developer/1822882839) | [Ari Jaaksi](https://appshunter.io/developer/1770069317) |

## What reviewers say

### LightMeter Express

[App page](https://appshunter.io/ios/app/lightmeter-express/id6748661409)

This tool transforms your iPhone into a professional light meter for photography. It offers accurate exposure readings with real-time calculations for aperture, shutter speed, and ISO, supporting various camera settings and providing exposure compensation.

**Highlights:** Real-time light metering, Precise exposure calculations, Support for standard camera settings, Exposure value (EV) display, Spot metering (Pro feature), Live histogram (Pro feature)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Light Meter Pro | $2.99 | one-time |


### 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 LightMeter Express free?

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

### Is SlowLightMeter free?

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

### Which has better reviews, LightMeter Express or SlowLightMeter?

LightMeter Express and SlowLightMeter are both rated 5.0 out of 5 on the App Store, from 8 and 2 ratings respectively.

### Do LightMeter Express or SlowLightMeter have ads?

Neither LightMeter Express nor SlowLightMeter shows ads.

### Which is updated more often, LightMeter Express or SlowLightMeter?

LightMeter Express ships an update daily, and SlowLightMeter every 4 days. Most recently, LightMeter Express was updated on September 27, 2026 and SlowLightMeter on October 8, 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.*