Yes, Color Harmonizer is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
Color Harmonizer is free.
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The tool claims to help the user find color harmonies, yet very naively uses the standard RGB color system, which is highly distorted with respect to our perceptual color space and thus produces ugly, misleading color „harmonies“. For example it suggests complementarity relations, which are far from the true visual complements.
