Film Process Timer vs ND Filter EV
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.
ND Filter EV
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This is a calculator for photographing using ND (Neutral-density) filters with any number of stops. ND STOPS lets you set the exposure without ND filter in a blue field, and see the result below. EV ALTERNATIVES gives you a dual combo alternatives of ISO, APERTURE and SHUTTER SPEED SWEET SPOTS is not always accurate, but in many cases lenses has its sweet spot at about 40% up on the aperture range. SETTINGS lets you choose which stops you want to see in the ND STOPS PAGE and at what EV (exposure value) interval in all pages. To see more apps like this, go to www.discobajas.com
Screenshots
Verdict
The clearest difference is price: Film Process Timer at Free against ND Filter EV's $0.49. Film Process Timer also leads on update cadence (every 6 weeks vs every 4 months). ND Filter EV's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.0). On ads and device support 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
Film Process Timer is free to download; ND Filter EV costs $0.49 up front. Film Process Timer sells 1 one-off in-app purchase. ND Filter EV asks for nothing beyond the download.
Film Process Timer ships an update every 6 weeks, ND Filter EV every 4 months. The most recent releases landed on October 12, 2026 and October 25, 2026 respectively.
| Parameter | Film Process Timer | ND Filter EV |
|---|---|---|
| Price | Free — better | $0.49 |
| Rating | 2.5 (2 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrzej Zawadzki | Stein Erik Nilsen |
In-app purchases
Film Process Timer
- Unlock features$3.99
ND Filter EV
No in-app purchases
Questions
Is Film Process Timer free?
Is ND Filter EV free?
Do Film Process Timer or ND Filter EV have ads?
Which is updated more often, Film Process Timer or ND Filter EV?
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