In art, a value (or tone) is how light or dark a colour is. If you're learning to paint or draw, a good place to start is by doing value studies. These are small loose sketches in greyscale that show where shadows fall and highlights appear. These are particularly useful when the subject is more complicated, when it's hard to see through the colours to show the subtle shadows.

If you're learning to paint or draw, value studies are a sure-fire way to improve both your artwork and how you visualise references in your mind. People often use photo editors to convert a colour photo to black and white... this is helpful but this app goes further.

By using Value Study, you're able to flick between levels of detail. Maybe you want to start with just black and white to get a base down, then add in extra values one by one to build up your understanding of the reference you are studying.

You can even take it a step further and select all areas that have a matching tone. Click one of the values along the bottom in the greyscale palette to see all areas that match it in the image, so you can focus in on one value while painting it. For example in a portrait, this could mean seeing how different parts of the body have the same amount of shadow despite potentially looking wildly different when viewed in colour.

Value Study is a tool, not to replace your own value studies but to enhance them and especially to help beginner artists have some idea how where to start when looking at complicated reference imagery.

What’s New

Version 1.4

- Introducing Live Filter!
The new Live Filter mode adds a real time video filter, which includes all of the functionality from the existing image mode (such as colour selection and configuration of tones).
- Vastly improved performance of colour selection, building upon the performance increase from v1.3, removing the need for loading spinners altogether.

Ratings and Reviews

4.8 out of 5
195 Ratings

195 Ratings

Disappointed, but hopeful ,

Fantastic!! Perfect!!

I’m taking an art class and we have to turn in a NOTAN. Quick explanation, a NOTAN is a value study. It would be what you’d see if you squinted and could only see in black and white. Sometimes they are just black and white, sometimes 3-5 values. This app makes this so EASY because you can select any of those shades of grey and tap that value, that value only then turns green on your photo. Once you can see/draw that you can make another value green. In no time a person who doesn’t see values (like me!) can learn to see the difference. My art homework just became possible! Thanks, from someone just starting out in art!!!

Developer Response ,

I’m so glad you found it useful!

jefferonni ,

Want to know the value?

This app is a tremendous aid to artists, especially us beginners, who want to have a quick evaluation of the values in a scene. You can do a notab (black and white only) or up to 5 shades of gray in between. Love it!

Am.1233.ny ,

Helpful for practice

Great tool to have on your phone if you are trying to improve your values in art.

App Privacy

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.

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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