Film Development Assistant vs Agitation

Film Development Assistant provides advanced features for every at-home photographic film developer! Reduce your risk of development issues by keeping track of your chemical batches and development sessions in the app. Our ever-evolving database of home development chemicals makes it easy to track the expiration dates of your mixed chemical batches based on the suggested shelf life from the manufacturer. Once you have your chemicals mixed, you can create sessions to track how many rolls/sheets of film you are developing, and the app will track the chemical usage for you so that you don't forget how much chemical capacity you have remaining! The visual progress indicators for your chemical batch freshness are a very useful tool for keeping track of your chemicals and making sure you either use them before expiration, or prevent yourself from using already expired or depleted chemicals. With each session, you can open a multi-stage timer to track the time for each stage of development. No more creating different timers by hand with the default timer app on your phone! And if you associate an existing chemical batch with each stage, the app will automatically adjust the development times of those stages based on the previous usage of your chemicals (or you can adjust the times manually). When you finish your sessions, you can take notes about how your session went so that you can learn from your home development process over time. You can keep track of the quality of the session and add your own notes to reference later.

Agitation is a film development timer and record keeper for black-and-white darkroom work. Choose a film, developer, dilution, ISO, and temperature, then run a clear step-by-step timer for your development process. Save sessions with notes, temperatures, and sample photos so you can compare results and repeat working setups. The free version includes 20 common official recipes, custom manual recipes, 3 complete development runs, 5 saved records, 1 sample photo per record, 2 temperature updates per run, and 1 reusable setup. Agitation Premium removes these limits. New users can start with an eligible 7-day free trial through the App Store, subscribe monthly or yearly, or choose a one-time lifetime unlock. Premium includes: - Complete official film and developer database - Unlimited guided development runs and temperature updates - More saved records, sample photos, and reusable setups - Ongoing data corrections and app updates Monthly and yearly subscriptions renew automatically unless canceled in your App Store account before the renewal date. Trial eligibility is managed by Apple and is usually available once per subscription group. The lifetime option is a one-time purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/