See your reference more clearly. Study values, simplify light and shadow, use custom grids and palettes, and focus on the shapes that matter.
In art, value (or tone) refers to how light or dark a colour is. If you're learning to paint or draw, doing value studies is one of the best ways to improve. These small, loose sketches in greyscale help you understand where shadows fall and highlights appear—essential for capturing depth and form.
Value Study is a simple, focused tool designed to help you see values more clearly in your reference images. Instead of just converting a photo to black and white, this app lets you break down tones step by step. Start with just black and white to map out the biggest shapes, then gradually add more values to refine your understanding.
You can also highlight all areas of an image that share the same value, making it easier to see subtle shifts in tone. This is especially useful in complex references, like portraits, where different parts of the image might have the same level of shadow but look completely different in colour.
Value Study isn’t here to replace traditional studies—it’s here to enhance them. Whether you're sketching, painting, or working digitally, this tool makes it easier to focus on the fundamentals of light, shadow, and form.
Try it for free with all features enabled on sample images from Unsplash before deciding to unlock the full app with a low-cost yearly or lifetime purchase. All Value Study Pro upgrades count as lifetime purchase. Either option will unlock Value Study across iPhone, iPad and Mac.
Annual: Auto-renews yearly.
Lifetime: One-time payment, no fees.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
I’ve found this app to be wonderful as a learning assistant. The value decomposition is a crucial tool for learning how to see what matters in a photo, and you can easily change how many values to decompose an image into. The second feature I find so helpful is the grid option. I also like that that secondary grid is diagonal (a feature I haven’t seen anywhere else), which helps you avoid confusion with the major grid axis.
Watercolor Helpful
Sno & Lo
Just right. Just enough features but not so many that it gets confusing Very helpful especially now that I found out I can download it to my Mac and use the bigger screen. Thank you.
Diem Ltd = Committed and Perseveres. Try it, Buy it.
r_screenname
I may be like you, I am a very discriminating app downloader. Initially, I used this app to - try, and moved forward through iOS devices only, to purchasing lifetime, to sharing it as my drawing friends must try, and through multiple quick helpful chats with the creator, touse now - on my OS mac desktop. Shane is the best and each version is a blessing. My favorite new feature is Simplify Shapes. Try it. Preview before purchase. Mac, iPhone, and iPad apps
Developer Response
Ah that’s so kind, thank you! The macOS has been a tricky one but think the initial teething issues are solved now thankfully.
Great tool!
Popy509274
The vlaue study app is simple to use and has allowed me to simplify my subject mater ina. few clicks.
Developer Response
So glad to hear that, thank you for reviewing and using Value Study!
This update should fix the crashes some of you have been experiencing.
It also brings back the Combine Values tool. I underestimated how useful it was, particularly for linocut and block printing. While the histogram offers more control, Combine Values is often quicker and more convenient to use, so it is back!
Don't forget, you can star it from the Tools menu to add it to the toolbar at the bottom of the screen.
Questions, feedback or bugs? Email shane@valuestudy.app
Version 4.1.2
The developer, Diem Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
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The following data may be collected but it is not linked to your identity:
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Supported Features
Dark Interface
Information
Seller
Diem Limited
Size
34.2 MB
Category
Graphics & Design
Compatibility
Requires iOS 16.6 or later.
iPhone Requires iOS 16.6 or later.
iPad Requires iPadOS 16.6 or later.
Mac Requires macOS 14.0 or later.
Apple Vision Requires visionOS 1.0 or later.
Languages
English and 12 more
English, Dutch, French, German, Hindi, Italian, Japanese, Korean, Polish, Portuguese, Simplified Chinese, Spanish, Traditional Chinese