film Dev Timer vs Thirty Five mm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
film Dev Timer
This app assists film photographers in developing black and white film at home. It provides common development data, timing functions, and developer ratios to ensure stable manual processing for a high-quality result.
- Black and white film development guide
- Home development timing
- Developer ratio information
- Process-specific timing
- Stable manual processing support
- iPhone and iPad compatible
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This is an app developed for film photographers and photography enthusiasts to develop black and white film at home, suitable for iPhone and iPad. With the emergence of the trend of film retro in recent years, more and more friends are playing with film. In order to pursue higher development quality and production speed, more and more players choose to develop their own film at home. This app provides common film development and development data on the market, as well as the function of timing according to the process. You can develop the film according to the established developer ratio, specific time, and specific temperature to ensure the stability of manual processing. If you have any feedback, please email us at: xiliustudio@qq.com 。 Film production has been discontinued one after another. Let's take pictures and cherish them. Wishing everyone a pleasant time playing.
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 price: Thirty Five mm at Free against film Dev Timer's $3.99. Thirty Five mm also leads on update cadence (every 3 weeks vs every 4 months). On ads, in-app purchases, 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
Thirty Five mm is free to download; film Dev Timer costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
film Dev Timer ships an update every 4 months, Thirty Five mm every 3 weeks. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.
| Parameter | film Dev Timer | Thirty Five mm |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 81.8% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 7 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | 家啟 褚 | Jan Loehr |
In-app purchases
film Dev Timer
No in-app purchases
Thirty Five mm
No in-app purchases
