# SlowLightMeter vs ProFilm Meter

The clearest difference is price: SlowLightMeter at Free against ProFilm Meter's $14.99. ProFilm Meter's advantage is chart position (#200 vs unranked). On rating, review sentiment, ratings volume and update cadence there is nothing between them.

SlowLightMeter is free to download; ProFilm Meter costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for SlowLightMeter against 5.0 for ProFilm Meter. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

SlowLightMeter ships an update every 4 days, ProFilm Meter weekly. The most recent releases landed on September 18, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | SlowLightMeter | ProFilm Meter |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/slowlightmeter/id6751812869/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/profilm-meter/id6761498714/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#200** |
| Size | 1 MB | 57 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ari Jaaksi](https://appshunter.io/developer/1770069317) | [Scott Henderson](https://appshunter.io/developer/1889935226) |

## What reviewers say

### 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


### ProFilm Meter

[App page](https://appshunter.io/ios/app/profilm-meter/id6761498714)

**Currently charting:** #200 Top Paid · Photo & Video (US App Store)

This app acts as a comprehensive light meter and exposure toolkit for film photographers. It supports various film formats and calculates complex exposure adjustments like reciprocity failure and bellows compensation. Features include real-time metering, film stock libraries, and flash metering.

**Highlights:** Precision reflected-light meter, On-device film stock library, Reciprocity failure correction, Bellows compensation calculation, RA4 Color Reversal estimates, Flash metering and trigger, Lens-independent viewfinder zoom

**In-app purchases:** none


## Frequently asked questions

### Is SlowLightMeter free?

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

### Is ProFilm Meter free?

ProFilm Meter costs $14.99, with no in-app purchases.

### Which has better reviews, SlowLightMeter or ProFilm Meter?

SlowLightMeter and ProFilm Meter are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do SlowLightMeter or ProFilm Meter have ads?

Neither SlowLightMeter nor ProFilm Meter shows ads.

### Which is updated more often, SlowLightMeter or ProFilm Meter?

SlowLightMeter ships an update every 4 days, and ProFilm Meter weekly. Most recently, SlowLightMeter was updated on September 18, 2026 and ProFilm Meter on September 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.*