
Sun Day App Review 2026: Jack Dorsey’s Open Source UV Tracker, Tested
Sun Day is Jack Dorsey's open-source UV and vitamin D tracker, launched on TestFlight in July 2025. Single screen, auditable code, and…
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Sun Day is Jack Dorsey's open-source UV and vitamin D tracker, launched on TestFlight in July 2025. Single screen, auditable code, and…

SkinGenie promises a free AI-built routine from a 9-factor selfie scan. In practice it is a decision tree wearing the costume of…

Skin Rocks is Caroline Hirons' app, and the value is exactly what you would expect: her curation, her cheat sheets, her photo…

The Mewing App promises jawline reshaping through tongue posture. The practice is non-validated, the community is contentious, and the skincare angle nobody…

Luvly is a face-yoga subscription app with a polished UI, celebrity-instructor energy, and bold lifting claims. After 30 days, the exercises themselves…

FaceYogi is the cheaper, more clinical-looking alternative to Luvly. The 7-day program is real. The UI is rougher. The evidence base behind…

VISIA is not an app. It's a $30,000+ clinical imaging system used by dermatologists, plastic surgeons, and estheticians, and the only way…

Veracity sells a saliva hormone test that promises to map estrogen, cortisol, and DHEA back to your skin. A single saliva sample…

Spotscan+ is free, dermatologist-co-developed, and trained on 6,000 graded reference images. It's also a routine recommender for the brand that built it.…

SkinSort is the ingredient checker that put symbol-driven readouts in front of the rest of the K-beauty internet. After three weeks of…