Comparison

Lighting Ratio vs Silverlog Scan

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lighting Ratio

Features
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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

About

Silverlog Scan

Features
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Silverlog Scan calculates the scanning resolution (DPI) needed to achieve your desired print size and quality from your film format. HOW IT WORKS Select your film format (35mm, 120, 4x5, etc.), choose a print size and output quality, and see the minimum scanning DPI required. The calculator accounts for the enlargement factor from negative to print. FEATURES • All common film formats (35mm, 6x4.5, 6x6, 6x7, 6x9, 4x5, 8x10) • 13 standard print sizes from 4×6" to 40×60" (inches) • Output quality from 150 to 400 DPI • Required DPI calculation • Output resolution in megapixels and pixel dimensions • Estimated 8-bit and 16-bit file sizes • Quality indicators • Works offline — no internet connection needed • Clean, focused interface • Dark mode support USEFUL FOR • Setting up flatbed scanner resolution • DSLR scanning resolution planning • Understanding how much detail your film format captures • Choosing the right scanner for your print size needs • Optimising scan time vs quality tradeoffs Part of the Silverlog photography toolkit. No account required. No data collected.

Screenshots

Lighting Ratio3 screens
Silverlog Scan4 screens

Verdict

The call

The clearest difference is in-app purchases: Lighting Ratio at none against Silverlog Scan's 5. Lighting Ratio also leads on device support (4 vs 2). Silverlog Scan'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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Lighting Ratio ships an update every 4 months, Silverlog Scan every 4 days. Both last shipped on October 5, 2026.

Scorecard3 real differences · 3 level
Lighting Ratio versus Silverlog Scan: the parameters behind the verdict, then further details
ParameterLighting RatioSilverlog Scan
PriceFreeFree
Update frequencyEvery 4 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, Apple Watch, Vision Pro — betteriPhone, iPad
Requires iOS16.516.4 — better
Further details — not scored
Size2 MB40 MB
Age rating4+4+
DeveloperDavin NguyenSimon Westgate

In-app purchases

None

Lighting Ratio

No in-app purchases

5 purchases

Silverlog Scan

One-time5
  • Nice One$0.99
  • Legend$2.99
  • Absolute Hero$4.99
Show 2 more
  • Guardian Angel$9.99
  • Actual Saint$29.99

Questions

Is Lighting Ratio free?
Lighting Ratio is free to download, with no in-app purchases.
Is Silverlog Scan free?
Silverlog Scan is free to download, with in-app purchases available.
Do Lighting Ratio or Silverlog Scan have ads?
Neither Lighting Ratio nor Silverlog Scan shows ads.
Which is updated more often, Lighting Ratio or Silverlog Scan?
Lighting Ratio ships an update every 4 months, and Silverlog Scan every 4 days. Most recently, Lighting Ratio was updated on October 5, 2026 and Silverlog Scan on October 5, 2026.

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