Lighting Ratio vs vDarkroom
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lighting Ratio
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.
- Calculate fill or background stops
- Enter key and fill stops
- Instant contrast ratio calculation
- Clear on-screen explanations
- Step-by-step math guidance
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Lighting Ratios makes exposure calculations quick for photography and film lighting. • Calculate fill or background stops from any key light value • Enter key and fill stops to instantly get contrast ratios • Clear on-screen explanations with step-by-step math
vDarkroom
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vDarkroom brings the complete traditional film darkroom workflow to iPhone — capture, exposure, development, enlargement — striving to recreate an authentic silver-halide photography experience. · Capture: records the raw image in RAW format, preserving the sensor's richest tonal data for reuse. · Exposure: applies multiple metering modes and assist tools to the captured raw data, exposing your selected film. · Development: supports multiple developers with fine-tuned parameters, including D-76, Rodinal, DD-X and more, to process the exposed film. · Enlargement: pure digital output with multiple paper choices, producing the final black-and-white image. · More: classic film packs (Kodak/Ilford/Retro/Fujifilm), HDR bracketing, B&W filters, multiple metering modes, neutral-gray indicator, lossless PNG export, Chinese, English & Japanese support, and more.
Screenshots
Verdict
The clearest difference is in-app purchases: Lighting Ratio at none against vDarkroom's 6. Lighting Ratio also leads on device support (4 vs 1). vDarkroom's advantage is update cadence (every 4 days vs every 4 months). On price, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. vDarkroom sells 6 one-off in-app purchases. Lighting Ratio asks for nothing beyond the download.
Lighting Ratio ships an update every 4 months, vDarkroom every 4 days. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.
| Parameter | Lighting Ratio | vDarkroom |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 4 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch, Vision Pro — better | iPhone |
| Requires iOS | 16.5 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | +4 |
| Developer | Davin Nguyen | 雷光 单 |
In-app purchases
Lighting Ratio
No in-app purchases
vDarkroom
- Kodak Film Pack$1.99
- Ilford Film Pack$1.99
- Retro Film Pack$1.99
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- Fuji Film Pack$1.99
- Alternative Process Pack$1.99
- vDarkroom Pro$9.99
