ColorDev Timer vs Silver Lab
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ColorDev Timer
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ColorDev Timer is designed for analog photographers developing color film (C-41) who want a clear, reliable, and distraction-free workflow. Choose your development kit, enter the total chemistry volume, how many rolls have already been processed, and whether youβre pushing or pulling film. The app calculates the timings and guides you through each development phase with a clear, lab-friendly timer. All development phases are listed with their individual durations, and the current phase is clearly highlighted. You can start any phase with a single tap and reset the entire process whenever needed. ColorDev Timer also tracks chemical usage, helping you know when your chemistry is approaching its recommended limits. Key features: β’ Phase-based development timer β’ Push / pull support β’ Development kit and volume selection β’ Roll usage tracking β’ Clean interface suitable for darkroom use β’ Designed for real analog workflows β’ App for Apple Watch No ads. No accounts. No clutter. Just analog photography.
Silver Lab
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Developing film should feel like a craft, not a calculation. Silver Lab is a darkroom timer built for film photographers who want to focus on the process and not the math. Select your film stock and developer, dial in your temperature and push/pull, and Silver Lab handles the rest. Development times are pulled from an extensive B&W film chart and automatically adjusted for temperature compensation and push/pull processing. For C-41 color negative, the full standardized process is built in and ready to go. When the timer starts, Silver Lab guides you through every stage β agitation cycles, stop bath, fixer, and optional Permawash and Photo-Flo steps. The animated agitation timer tells you exactly when to agitate and when to let the film sit, so you can put the phone down between cycles and not think about it. Features - Automatic development time calculation across a large library of B&W film stocks and developers - Temperature compensation and push/pull adjustment - Configurable agitation timing β set your own initial agitation, rest interval, and cycle duration, independently for Developer and Fixer - Optional Permawash and Photo-Flo steps - C-41 color negative process with push/pull support - Screen stays on throughout development - Live Activity functionality for longer developments - No accounts. No ads. No data collection. Everything runs locally on your device.
Screenshots
Verdict
The clearest difference is in-app purchases: Silver Lab at none against ColorDev Timer's 1. Silver Lab also leads on update cadence (every 4 weeks vs every 4 months). ColorDev Timer's advantage is device support (3 vs 1) and iOS requirement (17.6 vs 26.0). On price and ads there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. ColorDev Timer sells 1 one-off in-app purchase. Silver Lab asks for nothing beyond the download.
ColorDev Timer ships an update every 4 months, Silver Lab every 4 weeks. The most recent releases landed on September 7, 2026 and May 17, 2026 respectively.
| Parameter | ColorDev Timer | Silver Lab |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 4 weeks β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, Apple Watch β better | iPhone |
| Requires iOS | 17.6 β better | 26.0 |
| Further details β not scored | ||
| Size | 6 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Angel David Rodriguez | GREGORY HARRISON SCHUCH |
In-app purchases
ColorDev Timer
- Buy me a coffee$2.99
Silver Lab
No in-app purchases





