Built for the self-experimenter.

Memory is a terrible instrument for slow change. A bathroom selfie is worse — the light drifts, the angle drifts, the time of day drifts, and a month later you are comparing two photos that were never comparable.

Most of us buy a serum, use it for a few weeks, and decide it is or isn't working based on a feeling. The products are expensive and the feedback loop is broken. The skincare apps that promise to fix this tend to lock the useful parts behind a paywall, invent a “skin number” that means nothing, and quietly upload your face to someone's cloud.

GlowProof started from a simple frustration with all of that. The whole product is one idea: if you capture comparable photos — same light, same angle, same time — tied to the regimen you actually followed, the timeline tells you the truth. No verdict to trust or distrust. Just your own eyes, given honest evidence to work with.

So the app obsesses over the boring parts: a ghost overlay of your last photo to hold the framing, a fixed capture routine, a clear record of which products were in effect on any given day. The fun parts — the slider, the Glow Receipt — only work because the capture underneath them is disciplined.

Warm where it's human — the app speaks to you, celebrates showing up, and never nags. Exact where it's evidence — dates, day counts and product facts are stated plainly and never exaggerated. And respectful of your privacy throughout: your face photos are used only for your own timeline and comparisons — never for product matching, advertising or training, and never sold.