# Lighting Ratio vs Cinema Slate

The clearest difference is in-app purchases: Lighting Ratio at none against Cinema Slate's 1. Cinema Slate's advantage is update cadence (monthly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Cinema Slate sells 1 one-off in-app purchase. Lighting Ratio asks for nothing beyond the download.

Lighting Ratio ships an update every 4 months, Cinema Slate monthly. The most recent releases landed on October 22, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Lighting Ratio | Cinema Slate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/lighting-ratio/id6741826632/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free | — |
| Size | 2 MB | 86 MB |
| Requires iOS | 16.5 | **15.0** |
| Devices | iPhone, iPad, Apple Watch, Vision Pro | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Davin Nguyen](https://appshunter.io/developer/1680398335) | [Navideck Labs OU](https://appshunter.io/developer/1649146744) |

## What reviewers say

### Lighting Ratio

[App page](https://appshunter.io/ios/app/lighting-ratio/id6741826632)

This app simplifies exposure calculations for photographers and filmmakers. It allows users to determine fill or background stops based on key light values and instantly calculates contrast ratios by inputting key and fill stops. On-screen explanations provide step-by-step mathematical guidance.

**Highlights:** Calculate fill or background stops, Enter key and fill stops, Instant contrast ratio calculation, Clear on-screen explanations, Step-by-step math guidance

**Features:** macOS Compatibility

**In-app purchases:** none


### Cinema Slate

[App page](https://appshunter.io/ios/app/cinema-slate/id6791551636)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $229.99 | one-time |


## Frequently asked questions

### Is Lighting Ratio free?

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

### Is Cinema Slate free?

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

### Do Lighting Ratio or Cinema Slate have ads?

Neither Lighting Ratio nor Cinema Slate shows ads.

### Which is updated more often, Lighting Ratio or Cinema Slate?

Lighting Ratio ships an update every 4 months, and Cinema Slate monthly. Most recently, Lighting Ratio was updated on October 22, 2026 and Cinema Slate on October 26, 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.*