After 5 days of logging, Skintrics compares how often your skin flares within your chosen reaction window (12, 24 or 48 hours) after an exposure, against days without it. Exposures with a much higher flare rate are flagged as suspected triggers, each with a confidence level that rises as you log more days. This is correlation, not diagnosis, so treat it as a starting point to discuss with your GP or dermatologist.
Pattern detection needs a baseline. With fewer than 5 days there isn't enough information to identify patterns reliably. The more days you log, the more reliable the confidence ratings become.
New subscribers get 7 days free. You're charged when the trial ends unless you cancel at least 24 hours before. To cancel, open iPhone Settings, tap your name, then Subscriptions, then Skintrics, then Cancel. If you cancel during the trial you won't be charged.
Subscriptions are managed by Apple. Open iPhone Settings, tap your name, then Subscriptions, then Skintrics, then Cancel Subscription. You keep access until the end of the current billing period. Refunds are handled by Apple at reportaproblem.apple.com. Email us if you have a specific concern.
Tap Restore purchases on the subscription screen, or go to Profile and choose Restore purchases. Make sure you're signed in to the same Apple ID you purchased with. If it still doesn't restore, email us and we'll sort it out.
Your skin logs, exposures, notes, photos and reports are stored on your iPhone and aren't uploaded to us. Some optional features do send limited information to other services: AI reports, meal photo analysis and ingredient-label cleanup go through our server to OpenAI, community posts are stored in Apple's CloudKit, and contributed products are stored in our database. Our Privacy Policy lists exactly what is sent and why.
Unfortunately not, unless it's in your iPhone's iCloud or computer backup. Because your logs are stored on your device and not on our servers, deleting the app removes them. We recommend exporting regularly: go to Profile, then Export your data, and choose CSV backup.
Go to Profile and tap Export your data at the top, then GP report (PDF). Choose your date range, preview the PDF, and share it by email, print it or save it to Files. It includes your severity breakdown, suspected triggers and a condensed day-by-day log.
Tap Contribute on the not-found screen and photograph the product and its ingredient list. We read the label, separate the ingredients from other packaging text, and you can edit the result before submitting. After review, approved products appear in search for everyone under Community products. For the best result, use good light and hold the label flat.
Weather, humidity, UV and pollen need location permission. Go to iPhone Settings, then Privacy & Security, then Location Services, then Skintrics, and choose "While Using the App". Reopen the Log screen and the data should appear.
Check that notifications are allowed for Skintrics in iPhone Settings, that you're signed in to iCloud, and that you've joined the group. Notifications only arrive for groups you've joined and for replies to your own posts. If it still doesn't work, email us with your iPhone model and iOS version.
Go to Profile, scroll to the Danger zone and tap Delete account. This permanently deletes your locally stored data and cannot be undone, so export it first if you want a copy. To have community posts or contributed products removed as well, email us.
No. Skintrics is a personal tracking tool, not a medical device. Its patterns, product scores and reports are observations based on the data you and others enter, not clinical diagnoses. Always consult your GP or dermatologist before changing your health routine. In an emergency, call 999.
Still need help?
We read every email and aim to reply within 24 hours on weekdays.
hello@skintrics.app