The Massive Dev Chart is the world's largest film development chart with easy to use multi step timer and darkroom support for iPhone, iPad and iPod Touch. Watch the instructional video at:

*** Reviews ***

"If you use a darkroom, or if you dev the odd roll at your kitchen sink, buy it. Essential: 10/10"

"The Massive Dev App... is well worth it. I highly recommend this iPhone app."

"...solidly built and extremely well thought out app. Everything works in an extremely intuitive manner, and the audio reminders are extremely helpful."

*** Features ***

• Offline copy of The Massive Dev Chart in your pocket
• Multi Step Timer with sound notifications
• Customizable agitation scheme
• Darkroom themes
• Dilution Mixer
• Support for two-step development and two-step fixing
• Support for optional hypoclear and photo flo steps
• Automated development time/temperature compensation

What’s New

Version 4.3

Added option to delay start of auto-timer.
Latest database.
Other small fixes.

Ratings and Reviews

4.1 out of 5
27 Ratings

27 Ratings

p8blr ,

Cool but wish it was customizable

So I bought this to develop my first roll of Ilford HP5+ and while it was super helpful I had to write a couple notes to myself where I altered your events such as the hypo clear step. Could you please let us edit the titles or even let us add our own operations?

Earlrond ,

Latest upgrade broke on iPhone 4S

I’ve been using this app for quite some time, and must say it is very useful when I develop black and white film, and I rather like it. However the latest upgrade broke on my iPhone 4S despite the fact that the phone is running iOS 9.3.5, which the app is supposed to run on. The problem is that UI elements tend to overlap on the screen, making some parameters impossible to change. (Example: trying to turn on time-temperature conversions changes the temperature setting! I tried using a stylus instead of my finger but it didn’t do any good.) The app works fine on my iPhone 6S+, but as that is my primary phone I’d rather not expose it to chemicals - that’s what I use the old 4S for. Guess I won’t have a choice until the problem is fixed in a future update.

Could I make another suggestion? Please allow different agitation regimens for developing and fixing.

Lenscratch ,

Truly amazing

This has pretty much every type of film/developer I use. It’s an amazing app that makes developing super easy and it allows you to customize and make adjustments as needed. It would be amazing for them to include color film options, especially since c-41 kits are becoming more popular and obtainable for at home developing.

App Privacy

The developer, Digitaltruth Photo Ltd, 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.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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