Comparison

Silverlog Pinhole vs ProLab Film Developer

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

Head to head
About

Silverlog Pinhole

Features
Read full description

Silverlog Pinhole calculates the optimal pinhole diameter, effective f-stop and exposure adjustments for pinhole camera photography. HOW IT WORKS Enter your focal length (the distance from pinhole to film plane) and the app calculates the optimal pinhole diameter for the sharpest possible image, the effective f-stop, and the exposure compensation needed compared to a conventional camera. FEATURES • Optimal pinhole diameter calculation • Effective f-stop calculation • Exposure times from lighting presets, with ISO and reciprocity correction • Choice of Lord or Rayleigh constant for the optimal diameter • Film and paper format support • Works offline — no internet connection needed • Clean, focused interface • Dark mode support USEFUL FOR • Building DIY pinhole cameras • Converting existing cameras to pinhole • Calculating exposures for pinhole photography • Understanding the relationship between pinhole size and image quality • Educational exploration of camera fundamentals Part of the Silverlog photography toolkit. No account required. No data collected.

About

ProLab Film Developer

Achieve consistent color film development at home with real-time adjustments for temperature and chemistry. This app eliminates guesswork by actively recalculating development times based on changing conditions, ensuring repeatable results without expensive equipment.

Highlights
  • Real-time time compensation
  • Chemistry tracking
  • Dynamic Time-Temperature Engine
  • Push processing support
  • Guided workflow
  • Supports major C-41 kits
Features
Read full description

No sous-vide. No guesswork. Just consistent colour film development. ProLab is a precision colour film development tool with real-time time compensation and chemistry tracking. ProLab Film Developer is the smarter way to develop colour film at home. Most home colour film development goes wrong for two reasons: temperature drift and tired chemicals. Every other app ignores that. ProLab Film Developer doesn’t. It’s the only app that actively adjusts your development time in real time, based on what’s actually happening, not what should be happening. Real-time time and temperature correction Built around a Dynamic Time-Temperature Engine, ProLab continuously recalculates your development time as conditions change. Temperature drops? Time is adjusted. Chemistry weakening? Compensated. No guessing. No assumptions. No expensive setup. No barriers. You don’t need a sous-vide. You don’t need a lab. Just a tank, a thermometer and a bowl. This is consistent, repeatable colour development without the cost or complexity. What makes it different • Real-time time compensation based on live temperature input • Chemistry tracking with exhaustion awareness • Intelligent adjustments based on actual usage, not theory • Built-in push processing for 1 and 2 stops • Clean, guided workflow from start to finish Supports major home C-41 kits, including Cinestill, Bellini, Rollei, Adox, Fuji and more. Built by a photographer, not a developer This was made to solve a real problem in home film processing. If your temperature moves and your timing doesn’t, you’re already off. Get it right. Every time.

Screenshots

Silverlog Pinhole4 screens
ProLab Film Developer4 screens

Verdict

The call

The clearest difference is price: Silverlog Pinhole at Free against ProLab Film Developer's $7.99. Silverlog Pinhole also leads on update cadence (every 5 days vs every 3 months). ProLab Film Developer's advantage is in-app purchases (none vs 5). On ads, device support 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

Silverlog Pinhole is free to download; ProLab Film Developer costs $7.99 up front. Silverlog Pinhole sells 5 one-off in-app purchases. ProLab Film Developer asks for nothing beyond the download.

UpkeepUpdate frequency

Silverlog Pinhole ships an update every 5 days, ProLab Film Developer every 3 months. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
Silverlog Pinhole versus ProLab Film Developer: the parameters behind the verdict, then further details
ParameterSilverlog PinholeProLab Film Developer
PriceFree — better$7.99
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 5 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size40 MB189 MB
Age rating4+4+
DeveloperSimon WestgateJames Maher

In-app purchases

5 purchases

Silverlog Pinhole

One-time5
  • Nice One$0.99
  • Legend$2.99
  • Absolute Hero$4.99
Show 2 more
  • Guardian Angel$9.99
  • Actual Saint$29.99
None

ProLab Film Developer

No in-app purchases

Questions

Is Silverlog Pinhole free?
Silverlog Pinhole is free to download, with in-app purchases available.
Is ProLab Film Developer free?
ProLab Film Developer costs $7.99, with no in-app purchases.
Do Silverlog Pinhole or ProLab Film Developer have ads?
Neither Silverlog Pinhole nor ProLab Film Developer shows ads.
Which is updated more often, Silverlog Pinhole or ProLab Film Developer?
Silverlog Pinhole ships an update every 5 days, and ProLab Film Developer every 3 months. Most recently, Silverlog Pinhole was updated on October 1, 2026 and ProLab Film Developer on October 5, 2026.

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