Comparison

Silverlog Timer 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 Timer

Features
Read full description

Silverlog Timer is a purpose-built timer for darkroom film and print development, with agitation interval tracking and a red-only display mode for use under safelight conditions. HOW IT WORKS Pick a process, or build your own from steps that each have their own time and agitation interval. Start the timer and it runs through each step in turn, with clear visual and audio cues for each agitation cycle. Red mode switches every screen to a red-only display for print processing. FEATURES • Multi-step processes with a time and agitation interval for each step • Built-in templates for B&W, B&W stand development, C-41, E-6 and print development • Create and save your own processes • Agitation interval tracking with alerts • Red safelight display mode for print darkrooms • Audio alerts for agitation and completion • Countdown with progress through the whole process • Large, readable display • Works offline — no internet connection needed • Dark mode support USEFUL FOR • Black and white film development • C-41 and E-6 processing • Darkroom print development • Any timed chemical process with regular agitation 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 Timer4 screens
ProLab Film Developer4 screens

Verdict

The call

The clearest difference is price: Silverlog Timer at Free against ProLab Film Developer's $7.99. Silverlog Timer also leads on update cadence (weekly 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 Timer is free to download; ProLab Film Developer costs $7.99 up front. Silverlog Timer sells 5 one-off in-app purchases. ProLab Film Developer asks for nothing beyond the download.

UpkeepUpdate frequency

Silverlog Timer ships an update weekly, ProLab Film Developer every 3 months. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
Silverlog Timer versus ProLab Film Developer: the parameters behind the verdict, then further details
ParameterSilverlog TimerProLab Film Developer
PriceFree — better$7.99
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyWeekly — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size41 MB189 MB
Age rating4+4+
DeveloperSimon WestgateJames Maher

In-app purchases

5 purchases

Silverlog Timer

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 Timer free?
Silverlog Timer 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 Timer or ProLab Film Developer have ads?
Neither Silverlog Timer nor ProLab Film Developer shows ads.
Which is updated more often, Silverlog Timer or ProLab Film Developer?
Silverlog Timer ships an update weekly, and ProLab Film Developer every 3 months. Most recently, Silverlog Timer was updated on October 6, 2026 and ProLab Film Developer on October 5, 2026.

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