siOsi

siOsi tells you. Mixed light, heavy filters, and low resolution all lower the confidence score, and if the photo genuinely can't settle a question, you get an explicit "can't call this" instead of a confident guess. A retake in daylight beats a wrong answer.

No. The season quiz is photo-free: ten questions that score undertone, depth, softness, and contrast as separate axes. It reports a confidence bucket, names your runner-up season, and tells you which axis separates the two.

Twelve makeup labs grade the look you're wearing (foundation match, flashback, oxidation, coverage balance, pore visibility, transfer resistance, creasing, glitter fallout, and more) and three geometry labs read your features. Every lab returns its own verdict and confidence score.

Because neutral is a tone, not an undertone. When your answers genuinely conflict on the warm-cool axis, siOsi lowers its confidence and says the call is contested rather than hiding the conflict behind a "neutral" label.

Your first analysis needs no signup at all, and a free account gets a monthly allowance of analyses. The paid plan removes the volume cap and adds nothing else: free users see the same depth, the same labs, and the same palettes as paying ones.

Possibly both saw the same borderline case and only one admitted it. Most tools output a single confident season no matter how contested the call is. siOsi shows you the runner-up and the axis where the decision was close, so you can test the disagreement yourself with the at-home checks in the guides.