teewai scores your smile's whiteness and health from a single photo. Snap a photo and teewai's AI extracts whiteness, shade, stain and dental health signals; a deterministic engine then maps them to a VITA Classical shade, a 0-100 whiteness score, and a dental health score. You get an instant shade match, stain and plaque detection, a personalized whitening plan backed by research, and a progress tracker that shows your improvement over time. Snap your meals and teewai identifies the chromogens, tannins and acids in your diet, rolling each into a daily stain load that shows exactly what's dimming your smile. Family plans include 5 members with 15 scans each per month, tracked individually. We use your Google account only to sign you in securely and create your profile. We never sell your data or use your photos to train AI models. Privacy Policy .