A free sexual health decision-support app that works in the real world — not just on paper. Built on the MATCH Framework by Christopher Zacharie, Certified HIV Prevention Specialist.
No condoms at 1AM. A partner who won't cooperate. Impaired judgment. A barrier that broke. Static plans shatter the moment reality hits — leaving people with panic, shame, and no idea what to do next.
MATCH Flow was built for exactly those moments. Not the ideal scenario. The real one.
When one piece fails, the others catch you. That's the entire point.
"Prevention isn't one-size-fits-all. It's a puzzle you solve for yourself."
Real-world scenarios are injected into your plan. Friends pressuring you. No condoms. Drinking. Partner refuses barriers. Your SafER Score drops in real time. You have to pivot — out loud, right now.
This is how muscle memory gets built. Safely, before it actually matters.
"Fearless is not the absence of fear. It's taking action despite it."
Tap what happened — Barrier Broke, Missed Dose, Boundary Pushed, Status Unknown — and get an instant step-by-step backup plan. The 72-hour PEP window is front and center. Action beats panic.
Input your environment, substances, social context, and privacy level. The app reads your MATCH Plan against those conditions and tells you exactly where you're vulnerable — before you're in the moment.
Word-for-word scripts organized by what's actually happening: partner pressure, status unknown, barrier refusal, safety concern. The Communication puzzle piece made actionable in real time.
Build your protection profile across all 5 puzzle pieces. Your SafER Score updates in real time — showing exactly how protected you are right now. Starts at zero. You build it up.
Geolocation-based discovery of nearby sexual health clinics. Filter by PEP/Emergency, PrEP Provider, STI Testing, or Sexual Health. View hours, insurance info, ratings, and get directions instantly. With one critical reminder built in: any ER can provide PEP within 72 hours. Don't wait for a specialist.
Build a real protection plan that holds up under pressure. No signup. No payment. No judgment. Just a tool that's actually there when you need it.
Launch the app →Equip your patients with a trauma-informed, LGBTQ+ affirming tool they'll actually use — in the clinic and at home. Partnership conversations welcome.
Partner with us →HARNESS is actively seeking grant partnerships to expand free public access to MATCH Flow. The product is built. We need the reach.
Start a conversation →MATCH Flow exists because traditional sexual health education has a design flaw — it hands people checklists that work perfectly in ideal conditions and shatter under real-world pressure. Every feature in this app was built to solve that specific problem.
Christopher draws on over a decade of classroom teaching, certified HIV prevention training, and deep expertise in trauma-informed, LGBTQ+-affirming education to build tools that meet people where they actually are — not where we wish they were.
The HARNESS Project · theharnessproject.org