Amberbath is a focused working desk for developing film with a process you already trust. Save your own film, developer, dilution, tank volume, reference temperature, bath order, duration and agitation interval. The app calculates stock and water amounts from the ratio you enter.
When you process a roll, start each bath after pouring. A large elapsed and remaining clock stays visible while the app is open. Pause, resume or mark a bath done yourself; the next bath never starts automatically. The active run survives app relaunch, and the screen stays awake while the timer is open. Afterward, record your result, compare actual time with your target, and open or share a generated PDF process sheet or run record.
The app starts with an empty library. An optional editable example is illustrative only. Enter times and chemical handling instructions from the product maker or a process you have verified. Amberbath does not recommend chemistry, compensate for temperature, control equipment, or guarantee a processing result. Timer and agitation cues are visual while the app is open; there are no background alerts. No account, ads, subscription, analytics, tracking, cloud sync or developer upload. Your data stays on your device unless you choose to share a PDF.
