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Undertone vs Voilà Charts

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Undertone compared with Voilà Charts
DetailUndertone logo UndertoneVoilà Charts logo Voilà Charts
What it doesSee why colors work Not given
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree: Original view, Temperature map, Value structure, Saturation map, Palette and Harmony for every image, 20 analyses at a time. Lifetime Premium: one-time purchase includes Composition guides, Contrast map, tinted value bands, unlimited history, full-res export. No subscription. Free: 10 charts, all chart types and styles, no account required. Launch license: $14.99 one-time payment for unlimited charts, custom logo, and no Voilà mark. $19.99 after the first 100 licenses.
Key features
  • Palette with proportions showing dominant colors sized by image weight
  • Color harmony identification (Complementary, Analogous, Triadic, Split-complementary, Tetradic, Square, Monochromatic)
  • Temperature map showing warm and cool distribution across image
  • Value structure divided into clear zones (light, mid-tone, dark)
  • Saturation map showing vivid and muted areas
  • Composition guides identifying classic guides like golden ratio and rule of thirds
  • Contrast map showing where the eye lands first (Premium)
  • Painter-friendly color names (Yellow Ochre, Payne's Gray, etc.)
  • Local device processing with no image uploads
  • Works offline with no account required
  • Automatic chart type detection from data
  • Support for links, screenshots, CSV, Excel and text files
  • Bar, line, pie and combo charts
  • Compare two data sources on one chart
  • Custom branding with logo and color palettes
  • One-click customization of chart elements
  • Export and save charts
  • No data collection or cloud storage
What makes it different
  • Shows color proportions, not just colors, recognizing that a 60/5 split is fundamentally different from 50/50
  • Four layers of analysis together show relationships single layers cannot reveal
  • Built by people who actually mix paint with painter-friendly vocabulary
  • Lifetime Premium with single payment, no subscription model
  • All data stays on device, no account signup required
  • Instantly create professional charts by pasting a link or table
  • One-time purchase with no subscription required
  • All data processing happens locally on your Mac
  • Pre-styled charts that require no design skills
  • Ten free charts before requiring a license
Community votes01
DR (Domain Rating by Ahrefs)8 +1 (up) since last check28 +9 (up) since last check
Trust Flow (Majestic)435
Citation Flow (Majestic)3235
Referring domains (Majestic)31146

4 details filled in for both companies.

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