All the features, at a glance.
Here’s everything Preppy can do, sorted like the app: Health, Activities, People and Learn. Plus Apple Watch and more.
What matters today, at a glance.
The Health tab shows your week, your next dose, how you feel and what’s coming up.
- Doses
Log PrEP, ART or DoxyPEP with one tap, even from the Lock Screen.
- Gentle reminders
Preppy reminds you on time, discreetly if you like.
- Wellbeing
Note how you feel and see how it changes over months.
- Symptoms
Note strength and body area, and learn when a test makes sense.
- Vaccination pass
Record every dose with the vaccine, practice and batch number.
- Month in review
See how many days you took your dose and how you felt.
Ready for your check-up.
Plan your appointments, keep your results and bring a report that shows how things went since last time.
- Appointments
Plan check-ups and add them to your calendar.
- Test results
Keep your results and see when the next test is due.
- Lab reports
Attach lab reports to your tests as a PDF, photo or scan.
- Report for your doctor
Take your doses, tests and vaccinations along as a PDF.
Only with you: Preppy makes the report on your device. It can include doses, DoxyPEP, tests, vaccinations, sexual contacts, symptoms with side effects and wellbeing. Partner names, notes, places and kinks are never in it. You decide what goes in and who gets it.
Your diary, completely private.
Keep track of what you experience, alone or with others, in as much detail as you like.
- Activities
Note duration, protection and partners, and rate how it was.
- Places
Save places and find them again on the map.
- Tags and kinks
Use your own words to find things quickly later.
- How was it?
Note how you felt during and after.
- Apple Health
Save activities to Apple Health too, if you like.
- From your watch
Start on your wrist and add the details later on iPhone.
Your partners, at a glance.
Create profiles for the people in your life and save as much or as little as you like.
- Profiles
Name, photo, pronouns, notes and contact details, as you like.
- Health
Note their HIV status if you know it, e.g. “undetectable”.
- Vaccinations
The profile shows which vaccinations someone has.
- Together
Link activities with partners and find them again.
What really matters, explained.
Over 300 short, illustrated lessons explain PrEP, testing, STIs, HIV and more, with questions along the way.
- Lessons
Short, illustrated pages get straight to the point.
- Questions along the way
Five question types show you what stuck.
- Learn more
Symptoms, tests and vaccinations link to the right lesson.
- Easy to share
Shared lessons open in the browser, no app needed.
Preppy on your wrist.
What matters today, without taking out your iPhone.
- Today
Take your dose with a tap and see your last seven days.
- On demand
Start with two pills, and the watch reminds you of the next doses.
- Start an activity
Sex or solo: a timer runs, and you add the rest later.
- Wellbeing
Note how you feel, even right after an activity.
- Symptoms
Log symptoms with a strength and end them with “It’s over”.
- Smart Stack
See your protection and next dose right on the watch face.
Private on your wrist: The watch only exchanges data with your iPhone, never with a cloud. If Preppy is locked on your iPhone, it stays protected on the watch too.



Made for you, on every device.
Make Preppy your own with an app icon, colors and Buddy. And use it wherever you are: on the Lock Screen, in Control Center, on iPad and in your Mac’s menu bar.
Your profile
Your health status, statistics and vaccination pass in one place.
24 app icons
Pick an icon that suits you, even a fully undercover one.
Friendly or plain
With Buddy and illustrations, or plain with just your data.
Your colors
Choose your accent color, launch screen and wellbeing figures.
Widgets
Keep your doses and wellbeing in view on the Home Screen.
App lock
Lock Preppy with Face ID so only you can look inside.
iPad and Mac
Use the whole app on iPad and your doses on the Mac.
Apple Watch
Doses, activities and wellbeing, right on your wrist.
Nine languages
Preppy speaks English, German, Japanese, Korean and more.