# Lighting Ratio vs LightCalc.io

The clearest difference is in-app purchases: Lighting Ratio at none against LightCalc.io's 1. Lighting Ratio also leads on device support (4 vs 2) and iOS requirement (16.5 vs 18.0). LightCalc.io's advantage is update cadence (every 3 weeks vs every 4 months). On price and ads there is nothing between them.

Both are free to download. LightCalc.io sells 1 in-app purchase, starting at $34.99 per year. Lighting Ratio asks for nothing beyond the download.

Lighting Ratio ships an update every 4 months, LightCalc.io every 3 weeks. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Lighting Ratio | LightCalc.io |
| --- | --- | --- |
| 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 | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 48 MB |
| Requires iOS | **16.5** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Davin Nguyen](https://appshunter.io/developer/1680398335) | [Matthias Streicher-Feldhofer](https://appshunter.io/developer/1896729345) |

## 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


### LightCalc.io

[App page](https://appshunter.io/ios/app/lightcalcio/id6770274311)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LightCalc Plus | $34.99 | per year |


## Frequently asked questions

### Is Lighting Ratio free?

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

### Is LightCalc.io free?

LightCalc.io is free to download, with in-app purchases available.

### Do Lighting Ratio or LightCalc.io have ads?

Neither Lighting Ratio nor LightCalc.io shows ads.

### Which is updated more often, Lighting Ratio or LightCalc.io?

Lighting Ratio ships an update every 4 months, and LightCalc.io every 3 weeks. Most recently, Lighting Ratio was updated on October 22, 2026 and LightCalc.io on October 16, 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.*