Value Study vs Tattoo Inkprep

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/

Inkprep requires an Inkprep Pro subscription to use the app. It offers a monthly and a yearly plan with auto-renewal. You can cancel anytime from your Apple ID settings. Inkprep is the booth tool for tattoo artists who work in color. You upload the clean digital design, choose the ink brand you work with and your client's skin tone. Inkprep returns the exact palette: which bottles you need and, when no single bottle matches, which mix to make and in what ratio. HOW IT WORKS 1. Upload the clean design (PNG, JPG or WEBP). 2. Choose your ink brand and the skin tone. 3. Get the color recipe in seconds. WHAT'S INCLUDED · 1,105 bottles from 6 brands: Eternal Ink, Intenze, Dermaglo, World Famous, Radiant and Solid Ink. · Recommended bottle for every color in the design. · Suggested mixes at 70/30, 50/50 and 30/70 ratios when there's no direct match. · Color loupe: zoom into any area of the design and see the assigned ink. · My Inks: save your real inventory and prioritize what you already have in the studio. · Browsable catalog with filters by brand, color family and search. · Project history and favorites. · Optimized for tablet: design on the left, recipe on the right. NOT GENERATIVE AI Color matching is deterministic and traceable: LAB color space and Delta E distance over each brand's real catalog. The same colors always give the same result. Nothing is made up. WHO IT'S FOR For tattoo artists who tattoo in color and want to stop improvising the palette by eye in front of the client. You prep the session before you start. SUBSCRIPTION Inkprep Pro unlocks unlimited analyses. Monthly or yearly subscription, auto-renewing. Cancel anytime from your Apple ID settings. Privacy Policy: https://inkprep.app/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/