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By Mark Putnam

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ValueViewer is an easy-to-use tool for artists who paint from life. Whether "en plein air" or in the studio, ValueViewer will allow the user to take a photo of their subject, view it in grayscale, or posterize it into two or three values. You may also select an existing image directly from a photo album on your iPhone or iPad.

Controls let you adjust the light, mid-tone, and dark area of your image to "key" your painting correctly, and assist in helping you "see" value, even in the most unforgiving light. The image can be zoomed in and out, scrolled, and rotated into position to help you find just the right composition for your painting. Convenient adjustable 'frame' overlays help you crop the image to fit your canvas, and grids can be displayed to help you to compose your painting or transfer the image to your canvas.

Experience artists consider the ValueViewer an "indespensible" tool, and even use it check the integrity of their composition and color choices as they work on a painting.

Thousands of amateur and professional artists rely on the ValueViewer everyday.

What's New in Version 3.6.2

ValueViewer is undergoing several important changes. The current version may not work correctly when taking pictures or accessing the Photo Library. Please wait to purchase after a new version has been released. To those of you who have purchase ValueViewer, thank you for you patience. An update should be released in June 2016.

- Completely fixes a handful of troublesome bugs such as the "frozen," "vanishing," or "mis-positioned" controls ribbon.

- Optimized interface for iPhone5, iPad, and older iPhone models.

- iOS 7.x ready, but still supports iOS 6.x.

- Added Rabatment grid option.

- About the Frame: The ValueViewer adjusts a frame to optimize your device's display. As a result, height and width may be swapped.

- About the Grid: In order to show a Grid, you must first choose to show a frame.


iPhone Screenshot 1
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iPad Screenshot 1
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Customer Reviews

A must-have app for every artist

I heard about this app from reading Jo Mackenzie’s book Three-Step Watercolors. I had been looking for an app that would help me view the NOTAN patterns in my photo references before I started a new art piece.

After getting tired of squinting all the time to look at my photo reference to discern the NOTAN patterns, I was grateful to discover the existence of this app.

I like that I am able to get both the gray-scale and the NOTAN views of any of the photos I have in either my iPhone or the iPad. The app works best for my aging eyes in the iPad because of its larger screen.

Excellent value finder for sketchbook artists

I use this app all of the time. I can zero in on the three or four values easily. And I can start off with my black brush pen for the darks and fill in with Watercolors. I think with some on-site sketching I will be more confident in getting the values and shapes correct. I highly recommend this tool.

Value Viewer

I liked this until it started freezing up on me. Especially in the GR mode. It locks up my screen and so basically I can't go any further. I have tried squeezing the frame, moving it up and down, taking a photo of the screen....nothing....I sure wish it would work because it's great otherwise. I needed the GR mode to share with my students regarding dividing up the composition to get the best design. Can you help? Thanks so much.

View in iTunes
This app is designed for both iPhone and iPad
  • $4.99
  • Category: Productivity
  • Updated:
  • Version: 3.6.2
  • Size: 51.7 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 6.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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