# Lighting Ratio vs Silverlog Reciprocity

The clearest difference is in-app purchases: Lighting Ratio at none against Silverlog Reciprocity's 5. Lighting Ratio also leads on device support (4 vs 2). Silverlog Reciprocity's advantage is update cadence (every 5 days vs every 4 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Silverlog Reciprocity sells 5 one-off in-app purchases. Lighting Ratio asks for nothing beyond the download.

Lighting Ratio ships an update every 4 months, Silverlog Reciprocity every 5 days. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Lighting Ratio | Silverlog Reciprocity |
| --- | --- | --- |
| 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 5 days** |
| Monetization | Free | — |
| Size | 2 MB | 40 MB |
| Requires iOS | 16.5 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Davin Nguyen](https://appshunter.io/developer/1680398335) | [Simon Westgate](https://appshunter.io/developer/1856537803) |

## 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


### Silverlog Reciprocity

[App page](https://appshunter.io/ios/app/silverlog-reciprocity/id6756740671)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nice One | $0.99 | one-time |
| Legend | $2.99 | one-time |
| Absolute Hero | $4.99 | one-time |
| Guardian Angel | $9.99 | one-time |
| Actual Saint | $29.99 | one-time |


## Frequently asked questions

### Is Lighting Ratio free?

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

### Is Silverlog Reciprocity free?

Silverlog Reciprocity is free to download, with in-app purchases available.

### Do Lighting Ratio or Silverlog Reciprocity have ads?

Neither Lighting Ratio nor Silverlog Reciprocity shows ads.

### Which is updated more often, Lighting Ratio or Silverlog Reciprocity?

Lighting Ratio ships an update every 4 months, and Silverlog Reciprocity every 5 days. Most recently, Lighting Ratio was updated on October 22, 2026 and Silverlog Reciprocity on October 20, 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.*