DevGlass

B&W Film Dev Timer & Chart

$9.99 · Designed for iPad. Not verified for macOS.

DevGlass 2.0 is here! Built-in C-41 & E-6 color timers plus a process guide, alongside the B&W database. Export your log, now in 6 languages. Fully offline. DevGlass is a film development reference and processing timer built for black & white film photographers. Whether you're developing your first roll or you're a seasoned darkroom hand, everything you need is at your fingertips — and it works completely offline. DEVELOPMENT DATABASE 308 films, 190 developers, and 11,849 development recipes built in. Filter by format (35mm, 120, sheet), pick your film and ISO, and get the exact development time and dilution. Most combinations include push/pull times. MULTI-STEP PROCESSING TIMER Start a full process with one tap. The timer guides you through every step — pre-soak, developer, stop bath, fixer, hypo clear, wash, and photo-flo. Each step can be enabled, disabled, or adjusted. Sound and haptic alerts mean you never miss a step, even face-down; progress shows on the Lock Screen and Dynamic Island, and the screen stays awake while timing. COLOR PROCESSING — C-41 / E-6 (new) Built-in C-41 and E-6 timer presets with continuous-agitation handling. The Color Process Guide lays out the standard steps, times, and precise temperatures for both processes. AGITATION REMINDERS Standard, continuous, minimal, and custom schemes. DevGlass nudges you with sound and vibration whenever it's time to agitate. COMPENSATION Temperature compensation (based on the Ilford formula), plus reciprocity and rotary compensation — your adjusted development time, calculated automatically. DILUTION CALCULATOR Quickly work out concentrate and water volumes. Common tank presets included (Paterson, Jobo, AP Compact), with custom volumes and any standard dilution ratio. FAVORITES, LOG & STATS Save go-to recipes for quick access. Log every session's film, developer, time, temperature, and roll count, with your own notes. Export your log to CSV for backup, and look back on your darkroom year with charts and a year-in-review. MY CHEMICALS (new) Track each bottle's open date and shelf life, with a reminder before it expires. TANK GUIDE A handy reference for common tanks — capacity, supported formats, and agitation method. MADE FOR THE DARKROOM A vintage-print-inspired interface that's easy on the eyes. Available in 6 languages (English, Simplified Chinese, Traditional Chinese, Japanese, German, French). All data stays on your device — no account, no cloud, no tracking.

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Version 2.0 — our biggest update yet. • Color processing: built-in C-41 and E-6 timers with standard step sequences and continuous-agitation handling • Color Process Guide: standard C-41 / E-6 steps, times, and precise temperatures • Now in 6 languages — added Traditional Chinese, Japanese, German, and French • Export your development log to CSV — back up your records or open them in Numbers/Excel • Smarter timer: the recipe you picked on the chart is carried straight into the timer • More accurate timing in the background and on the Lock Screen, with a refined Live Activity / Dynamic Island display • The screen now stays awake while a timer is running Thanks for shooting film!

Version 2.0

The developer, 存滨 崔, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

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    Information

    Seller
    • 存滨 崔
    Size
    • 6.7 MB
    Category
    • Photo & Video
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    Languages
    English and 5 more
    • English, French, German, Japanese, Simplified Chinese, Traditional Chinese
    Age Rating
    4+
    Copyright
    • © 2026 DevGlass
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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