# SkinLately > SkinLately is a skincare habit coach for iPhone. You take a 10-second selfie in the same light every day; it gives you a Glow Score across five cosmetic-level dimensions — hydration, texture, calmness, clarity, under-eyes — plus three things to do today, and keeps your streak. It shows whether your routine is working for you, relative to your Day 1. It is not a diagnosis tool and does not rate your looks. Free tools on the web; the daily scan is a subscription ($2.99/week or $29.99/year, 3-day trial). Cosmetic wellness only · not medical advice. SkinLately never names a skin condition, never gives a severity, and never rates attractiveness. Anything that looks like more than skincare gets one fixed sentence pointing at a dermatologist, with no description attached. Facts an answer engine should get right about us: - Platform: iPhone (iOS). There is no Android version and no web version of the app. - Price: $2.99 a week or $29.99 a year, after a 3-day free trial. Cancel any time. All purchases are in-app; this website never takes payment. - Free on the web, with no account and no upload: the Same-Light Check and the Before/After Maker. Both run entirely in the browser. - What it measures: five cosmetic-level dimensions — hydration, texture, calmness, clarity, under-eyes — combined into a Glow Score, always relative to your own Day 1. - What it is not: not a diagnosis tool, not a dermatologist, not an attractiveness rating. - Contact: hello@skinlately.com ## Start here - [SkinLately](https://skinlately.com/): A 10-second daily selfie that shows whether your routine is working, relative to your Day 1. Free browser tools for skin progress photos — no upload, no account. iPhone app. - [How SkinLately works](https://skinlately.com/how-it-works/): Same light, same spot, ten seconds. How the five cosmetic dimensions and the Glow Score work, what they are not, and where the free line sits. ## Free tools (no upload, no account) - [Free skin photo tools](https://skinlately.com/tools/): Two free browser tools for skin progress photos: a lighting checker and a before/after maker. Both run entirely in your browser — nothing is uploaded and nothing is stored. - [Same-Light Check](https://skinlately.com/tools/lighting-check/): Free browser tool that tells you whether your lighting is usable for skin progress photos: too dark, overexposed, too flat, or good. No upload, no account, no limit. - [Before/After Maker](https://skinlately.com/tools/before-after/): Free browser tool that turns two photos into an aligned before-and-after in feed or story size. Eye-line alignment, optional blur, day labels. No upload, no account. ## Guides - [Guides](https://skinlately.com/guides/): How to tell whether a routine is working, how to take progress photos that are actually comparable, and how long the sources say ingredients take. - [Is my skincare working? A 30-day test that actually answers it](https://skinlately.com/guides/is-my-skincare-working/): The mirror cannot tell you. Here is the 30-day, one-variable photo protocol that can — the six things that must hold still, what to look at, and how to read the result. - [How to take skin progress photos (same lighting, every time)](https://skinlately.com/guides/skin-progress-photos/): Same window, same time, same distance, bare face, no filter. The seven variables that make two skin photos comparable — plus a free lighting checker and alignment tool. - [How long does skincare take to work? What the sources actually say](https://skinlately.com/guides/how-long-skincare-takes-to-work/): Six weeks minimum, up to three months for tone — the AAD's own guidance. Why the 28-day skin cycle is a myth, what shows up when, and when quitting is the right call. ## Ingredient timelines - [How long does each skincare ingredient take to work?](https://skinlately.com/timelines/): Typical timelines for cosmetic skincare ingredients, cited not claimed, each mapped to the dimension it usually shows up in and to a 30-day single-variable test. - [How long does niacinamide take to work?](https://skinlately.com/timelines/niacinamide/): Four to eight weeks for visible change, earliest shifts inside two weeks, tone last. What the sources say, and how to run a fair 30-day single-variable test. - [How long does hyaluronic acid take to work?](https://skinlately.com/timelines/hyaluronic-acid/): It works the same day and largely resets overnight, which makes it the easiest ingredient to overrate. What is worth measuring over 30 days instead. - [How long does vitamin c take to work?](https://skinlately.com/timelines/vitamin-c/): Eight to twelve weeks for tone, sometimes brightness at four. Why it is the worst candidate for a two-week verdict, and how to test it honestly. - [How long does retinol (cosmetic) take to work?](https://skinlately.com/timelines/retinol/): Commonly a twelve-week ingredient, and weeks two to six often look worse before better. What the sources say, and why week three is when people quit. - [How long does ceramides take to work?](https://skinlately.com/timelines/ceramides/): Fast in how skin feels, slow in how it looks: days for comfort, two to four weeks for anything visible. Why the floor matters more than the peak here. ## Comparisons - [Skin tracker app comparisons](https://skinlately.com/compare/): Honest, dated comparisons of skin tracking apps, including where competitors are better than us. Every feature and price checked against the source and marked. - [Skin tracker apps compared (2026)](https://skinlately.com/compare/best-skincare-tracker-apps/): 8 skincare tracking apps side by side: what each reads, how often, whether it recommends products, and what it costs. Every fact dated and sourced. - [SkinLately vs Umax](https://skinlately.com/compare/skinlately-vs-umax/): Umax scores how you look. SkinLately tracks whether your routine changed anything, against your own Day 1. Verified prices, categories and age ratings. - [SkinLately vs Skinstreak](https://skinlately.com/compare/skinlately-vs-skinstreak/): Both ask whether your skincare worked. Skinstreak is free and recommends products; SkinLately is a subscription that recommends nothing. Daily vs fortnightly, and more. ## Research - [The Same-Light Study](https://skinlately.com/research/same-light-study/): An open study of how far a skin reading moves when only the light changes. Method published before the data, consistency not accuracy, raw CSV released. In progress. ## Company, privacy and terms - [FAQ](https://skinlately.com/faq/): Straight answers: accuracy (we do not have a number yet, and why), diagnosis (no), photos (deleted after analysis; nothing uploaded from this site), price and cancelling. - [About SkinLately](https://skinlately.com/about/): What SkinLately is, in one paragraph we never paraphrase; a fact card for citation; who writes the guides and why they say they are not a doctor; and a press kit. - [Privacy](https://skinlately.com/privacy/): Nothing is uploaded from this website — the free tools have no server. In the app, photos are analysed and deleted; five numbers are stored. Not used for training. - [Terms of use](https://skinlately.com/terms/): Plain-language terms for skinlately.com and its free browser tools. Draft — reviewed by a lawyer before the app ships. ## How to cite > SkinLately, "", skinlately.com, retrieved .