Massive Dev Chart Timer
Freestyle Photo & Imaging · App ID: 402405770
Downloads / mo
51
Range 20–128
Revenue / mo
$448
Range $176 – $1.1K
RPD
$8.79
Revenue per download
Avg. DAU
223
Daily actives
Time Spent
11 min
Per user / day (est.)
Session Count
15.4K
Monthly (est.)
Category Ranking
100+
Photo & Video · US Today
Top Countries
US · India · Brazil
By est. downloads share
Downloads Trend
53812-mo total
Monthly avg 44.8
Revenue Trend
$4.7K12-mo total
Peak Jul ($475) · amber bar = best month
Release Details
- Current Version
- 4.8.0
- Last Updated
- 4/17/2026
- Release Date
- 11/12/2010
- Minimum OS
- 12.0
- File Size
- 13.3 MB
- Content Rating
- 4+
- Languages
- CS, EN, FR, DE, JA, PL +4
Description
The Massive Dev Chart is the world's largest film development chart with easy to use multi step timer and darkroom support for iPhone and iPad. Watch the instructional video at: https://www.youtube.com/watch?v=P915z6THiY8. *** 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
Screenshots(10)
View on store ↗Ratings
3.8 / 5
53 ratings
- 5 ★50%
- 4 ★20%
- 3 ★9%
- 2 ★7%
- 1 ★13%
Recent Reviews
- ★★★★★trospero
Dark mode is broken
In a recent update, when using the app in my dark room to develop sheet film, when I select, dark mode, there is still a bright white dynamic island where the mode selector is, contributing significant light pollution into my space. I’ve had to tape it off with black tape to make it usable. Why did you implement this? Is it a bug?!
- ★★★★★trospero
Dark mode no longer dark!
In the darkroom, I rely on the ability to turn the screen of my iPhone to dark mode when using this app to time film development (sheet film, in trays). But in a recent update, there is now a large white “Dynamic Island” where the mode buttons are that cannot be turned dark, so there’s significant light pollution in my workspace when developing film, and I have to put black tape over that part of the screen!! WHY did you implement this?? Is it a bug or a “feature”??!
- ★★★★★iPhone User #5817
Could be so much better
Timer works fine, that’s the important part. But the UX around the whole app is just bad. It hard to scan the list in My Times (why no search?), can’t bulk delete, can’t sort or group. No separate utilities like the volume mixer. Please take some time to improve the app, there’s so much potential here.
- ★★★★★guess!!!
What gives?
I don’t know what the bad reviews are about. Honestly, this app has met my every need. I prefer that recipes are pre-programmed instead of having to search randomly for experimental recipes in the other app.
- ★★★★★Terry Schmidbauer
Put the dilutions back for HC110
I paid for this because it had dilutions for HC110. It is now removed. If you don’t put the feature back in you owe people a refund.
- ★★★★★Cyclingjunkie
No Color film
Only black and white film
- ★★★★★bac0nsnatcher
Dilutions are no longer on the chart
Dilutions used to be more clear and simple to pull up. The latest update is hopefully just a mistake as it now forces you to manually add them yourself to each mix.
- ★★★★★CreativelyJeff
Not worth the price
Dear App Developer, it would be fantastic if we could create our own timer instead of being limited to a set of developers based on the film I choose and a general configuration based on my preferences. However, this app is only for black-and-white film stock development, and doesn't help with color film (C41, E6, ECN2 and other) development. Regrettably, I wouldn’t recommend this app to anyone due to it's limitations. In this app, you can only make minor adjustments to saved “favorite” processes, which is practically useless for many seeking to develope at home. I would like to see a development timer that allows me to add or remove a few stops from my development time. This tool is not worth the $8.99 USD I paid for. I’ve switched to another app which has most of my requested features called “Develop!” and it's FREE!!! Hopefully you can improve this application.
- ★★★★★Oly XA
Thank you
Great App, Used it for years
- ★★★★★Mills Center Contemporary Music
How do you convert temperature to F.?
And they say temperature extrapolation data is available, but how do you get to it? Great to have the massive chart in digital form, but for $8.99, the app is underbaked.