# Develop! — Film Development Timer > Film development timer with custom recipes and darkroom mode. (iPhone/iPad app by Todd Breslow.) - Source: https://appshunter.io/ios/app/develop/id568421864 (this page in markdown: same URL + `.md`) - Developer: [Todd Breslow](https://appshunter.io/developer/568421867) - Category: Photo & Video, Lifestyle - Price: Free - Rating: 4.80/5 from 374 App Store ratings · 115 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 101 MB - Languages: American English, French (France), German (Germany), Hungarian, Italian, Chinese (Simplified, China) - Released: 2013-01-14 - Data updated: 2026-09-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/develop/id568421864/reviews.md ## What is Develop!? Develop your film with a smile! Develop! Film Development Timer is a flexible and elegant timer suitable for film and darkroom use. Create your own development recipes through a very simple and intuitive process. As many steps as you need with multiple intervals per step. It is entirely up to you, you are in full control. Notable Features: - Darkroom Mode: A minimalist red-on-black theme for darkroom use - Flexible: As many recipes as you like, as many steps per recipe as you like. Name your steps however you like. Record notes however you like. - Intuitive: Minimalist, elegant interface gets out of your way so there is nothing standing between you and your photography. Large timer is visible across the room. - Intervals: An integrated interval timer makes it easy to do things like “for this step please beep after the first minute and then every 30 seconds". You’ll know at-a-glance how much time until your next inversion. - Nostalgia: Great faux leather vulcanite covering - Import: Import recipes directly from FilmDev.org - Share. Tweet and post your recipes. Facebook, Twitter, Mail, Sina Weibo, Tencent Weibo are all supported. No more excuses that you lost track of time or forgot to agitate at a 30 seconds interval -- this is a thing of the past. Concentrate on being the best photographer and alchemist you can be, leave the timing to Develop!. Now go out there and shoot a roll of film! Good luck! 100% free. Always. ## Key features - Customizable development recipes - Multiple steps and intervals per recipe - Darkroom Mode (red-on-black theme) - Integrated interval timer - Import recipes from FilmDev.org - Share recipes via social media ## What do users think of Develop!? Overall sentiment: positive **Pros** - 🚀 Straightforward and useful - 👍 Customizable timers and recipes - 👍 Helpful voice prompts - 👍 Simple and easy to use - 👍 Excellent for film development - 👍 Versatile and flexible - 👍 Saves time and effort - 👍 Chime feature to aid agitation **Cons** - 🐛 Occasional crashes or bugs - 🔋 Cannot run in background - 👎 Quiet chime/alarm volume - 👎 Difficult to add/edit tasks - 👎 No darkroom mode or red light option **Commonly reported bugs** - Crashes on startup for some users - Timer stops when switching apps or locking phone - Issues with saving and editing recipes **Most requested features** - Ability to pause and resume timers - Option to clone/duplicate existing recipes - Integration with development charts or databases - More detailed task descriptions and notes - Ability to skip optional steps - Larger font size for better visibility - Background music playback without interruption ## Recent user reviews (10 of 115) All indexed reviews: https://appshunter.io/ios/app/develop/id568421864/reviews.md ### 5/5 — Perfect *2026-07-17, version 3.0.1* Simple, useful and user friendly. Great little app. Surprised it’s free to be honest. Interface is clean and uncluttered and you can fine tune the steps you need to Top marks for this one. ### 5/5 — Fabulous! *2026-06-19, version 3.0.1* Simple, awesome, and free. Genius. THANK YOU!!! ### 5/5 — Great tool *2026-06-14, version 3.0.1* I use this frequently for storing and using development recipes for a wide range of film. I’ve been using it for a few years now with no issues. ### 5/5 — This is what you are looking for. *2025-09-20, version 3.0.1* This is the app you are looking for. It has exactly what you need to time your development, nothing more, nothing less. If j could request one feature, it would be the option to add 2% to a previously used setting. For re-use of chemicals. But I can do that manually for now. ### 5/5 — Does exactly what is needed. Thank you! *2024-12-08, version 3.0.1* The app is economical, efficient, to the point and simple to negotiate. Rarely does that happen. Definitely a go to when I am developing film. ### 5/5 — Has everything you need *2024-11-08, version 3.0.1* It’s a great app, you can customize the timers to fit every need. Saves me so much time while developing and you can save your configurations as Recipes. Love it! ### 1/5 — Don’t use it! *2024-06-25, version 3.0.1* Waist of time! Couldn’t save times!! ### 5/5 — Exactly what I needed *2024-02-29, version 3.0.1* Straightforward and useful ### 3/5 — Reset in case of error *2023-10-21, version 3.0.1* I like the app other than one thing. I accidentally stopped the process mid flow, and was unable to catch-up with the sequence. I then had to improvise with timings and agitation sequences. I suggest adding the ability to go back and the restart the sequence at any one of the steps; and/or have a SKIP option to enable moving to the next stage of the sequence. In the meantime for users of the app and in case of a twitchy trigger finger I suggest having a back up timer, I used my iPhone clock app that has a stopwatch function, with lap timer which I used for the agitation sequences. ### 5/5 — Perfect *2023-06-25, version 3.0.1* Was able to do exactly what I wanted. The customization was precisely what I was looking for. 10/10 would Develop! Again. ## Frequently asked questions about Develop! ### What does the Develop! app do? Develop! is a film development timer designed for film and darkroom use. It allows you to create and manage custom development recipes with multiple steps and intervals, ensuring precise timing for your film processing. ### What are the key features of this app? Key features include a flexible recipe creation system with unlimited steps and intervals, a dedicated Darkroom Mode with a red-on-black theme, an integrated interval timer for precise agitation reminders, the ability to import recipes from FilmDev.org, and options to share your recipes. ### Is this app free to use? Yes, the Develop! app is 100% free to use. There are no costs associated with downloading or using any of its features. ### What devices is this app compatible with? The app description does not specify exact compatibility details. However, it is designed for mobile devices, implying compatibility with most modern smartphones and tablets running iOS or Android. ### How can I create a custom development recipe? You can create custom development recipes through a simple and intuitive process within the app. You can add as many steps as you need, name them as you like, record notes, and set multiple intervals for each step, giving you full control over your development process. ## Version history (last 5 releases) ### 3.0.1 — 2018-06-14 This app has been updated by Apple to display the Apple Watch app icon. Bug fixes. Temporarily removing notifications. (They'll be back). ### 3.0 — 2018-06-12 Fixes issues with crashing due to iOS updates. New Features -------------- - Background: You can put the timer in the background and bring it forward and all is well. - Notifications: You can switch to another app and you'll get notifications for each interval within a task and at the end of the task. - Interruptions: The timer remains accurate after a phone call or Siri (or similar interruption) - 90 minute max timer Known Issues -------------- - Not localized, new text is English only ### 2.1.4 — 2015-07-09 - You can import recipes from FilmDev.org that have five-digit codes - Timer completion/cancellation now returns to the recipe detail - Louder interval chime ### 2.1.3 — 2015-05-23 - Fixes a minor text alignment issue on the Settings screen under iOS7. - Fixes a rare problem when trying to edit the last task in a recipe. - Many thanks to Thilo Nass for the German translation. ### 2.1.2 — 2015-02-17 Internal changes to help with quality control ## Apps similar to Develop! | App | Rating | Price | Category | | --- | --- | --- | --- | | [Filmory - Analog Film Scanner](https://appshunter.io/ios/app/filmory-analog-film-scanner/id1559585775) | 4.5 (372) | Free | Photo & Video | | [KLIM Film Scanner](https://appshunter.io/ios/app/klim-film-scanner/id6452552757) | 4.6 (185) | Free | Photo & Video | | [Film Reciprocity](https://appshunter.io/ios/app/film-reciprocity/id1605389719) | 3.7 (6) | Free | Photo & Video | | [Viewfinder Preview](https://appshunter.io/ios/app/viewfinder-preview/id1216484605) | 4.7 (295) | $4.99 | Photo & Video | | [Massive Dev Chart Timer](https://appshunter.io/ios/app/massive-dev-chart-timer/id402405770) | 3.7 (54) | $9.99 | Photo & Video | | [Lightme - Logbook](https://appshunter.io/ios/app/lightme-logbook/id1544518308) | 4.8 (100) | Free | Photo & Video | ## Related topics [film developer timer](https://appshunter.io/ios/topics/film-developer-timer) · [darkroom timer](https://appshunter.io/ios/topics/darkroom-timer) · [film developer](https://appshunter.io/ios/topics/film-developer) · [film developer timer pro](https://appshunter.io/ios/topics/film-developer-timer-pro) · [luis arndt](https://appshunter.io/ios/topics/luis-arndt) · [alfredo delgado](https://appshunter.io/ios/topics/alfredo-delgado) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*