Film Process Timer vs Thirty Five mm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Film Process Timer
This app helps manage film developing processes with customizable multi-step timers. It offers a special darkroom mode with red hues and allows synchronization across devices. Predefined timers are available in the free version, with expanded features in the paid version.
- Multiple customizable timers
- Multi-step timer configuration
- Darkroom color mode
- Home screen notifications
- Timer grouping and favorites
- iCloud synchronization
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A film developing timer, with a darkroom color scheme mode where the colors are predominately red hues. It features the ability to create multiple timers, with multiple steps. The timers can be - Grouped in to categories or types - Duplicated - Set to show notification on the Home Screen (if notifications are enabled) - Marked as a favourite for easier access Some predefined timers are available with the free version of the app. These are not modifiable. Steps within timers can be - Up to 24 hours - Easily reordered (drag and drop) - Duplicated - Run automatically or manually (first step always has to be started manually) - Set up to make sound tone periodically. Running a timer shows - Current step information - Remaining time for the current step - Information for the next step - Progress of the process - Remaining time for the process - Selecting the darkroom color mode The user can select options to - Run the app in light or dark mode - Use the darkroom mode color scheme - Enable sounds (off, essential and all) - Change the color of the timer - Enable / Disable the display of the predefined timers. If you have multiple devices you synchronise your timer definitions between devices using iCloud (if available). In the free version of the app you can add a timer with 5 steps, and there are some predefined timers and a small set of color schemes. In the paid version you can have as many timers as your device allows, each with unto 50 steps, additional predefined timers are available and an expanded range of color schemes.
Thirty Five mm
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A toolbox for photographers shooting with and developing film on their own. It provides utilities for developing, metering or remembering locations to shot.
Screenshots
Verdict
The clearest difference is in-app purchases: Thirty Five mm at none against Film Process Timer's 1. Thirty Five mm also leads on update cadence (every 3 weeks vs every 6 weeks). On price, 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
Both are free to download. Film Process Timer sells 1 one-off in-app purchase. Thirty Five mm asks for nothing beyond the download.
Film Process Timer ships an update every 6 weeks, Thirty Five mm every 3 weeks. The most recent releases landed on June 1, 2026 and December 13, 2025 respectively.
| Parameter | Film Process Timer | Thirty Five mm |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 2 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrzej Zawadzki | Jan Loehr |
In-app purchases
Film Process Timer
- Unlock features$3.99
Thirty Five mm
No in-app purchases
Questions
Is Film Process Timer free?
Is Thirty Five mm free?
Do Film Process Timer or Thirty Five mm have ads?
Which is updated more often, Film Process Timer or Thirty Five mm?
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