Guides
The things nobody quite tells you
Accurate, unhedged answers about testing, prevention and privacy — written for people who are actually having the sex being described, not around them.
Prevention
The first 72 hoursPEP and DoxyPEP are the only things with a deadline. Everything else is a calendar problem. PrEP 2-1-1, preciselyTwo before, one at 24 hours, one at 48 — and what to do when the plan changes. DoxyPEP, and what it does not coverStrong against syphilis and chlamydia, uneven against gonorrhoea, useless against everything viral.
Testing
When a test can actually find itWindow periods for every common infection, and the schedule they imply. Why a urine test is not a screenThroat and rectal infections are usually silent, and a urine sample never looks for them. How often is often enoughAnnual, three-monthly, or more — and what actually decides which.
Afterwards
Privacy
These pages are general information, not medical advice. National guidance differs and changes over time. Anything specific to your situation is a conversation for a clinician or sexual health service. Candor is a personal record-keeping app; it does not diagnose, treat or prescribe.
Get Candor
Know yourself. Keep it to yourself.
Candor tracks encounters, PrEP and DoxyPEP doses, and STI testing dates — and works out what is due when. Everything stays on your iPhone. No account, no analytics.
14 days free, then US$19.99 / year · iOS 26 or later · Ages 18+