is it really free?
Yes. Logging, predictions, patterns, reminders, Apple Health, the doctor's report and the AI export are free. There is no paywall at the end of onboarding. Circle, the companion app for the people who love you, will be part of pum premium.
where does my data live?
On your iPhone, and by default nowhere else. pum needs no account, and no pum server holds your health data. iCloud sync is off until you turn it on. The full picture is here.
do I need an Apple Watch?
No. pum works fully without one. A watch adds sleep and wrist temperature on its own. Without one, you can log bedtimes and a morning temperature by hand.
my cycle is irregular, or I don't bleed at all. does pum still work?
Yes. pum is built for cycles that vary, skip, and change with treatment. If your period is paused by a hormonal IUD, the pill or surgery, pum shows no countdown. Where your body still cycles, pum can read your position from temperature instead.
is pum diagnosing me?
No. pum is not a medical device, and it does not diagnose or give medical advice. It finds patterns in what you log, and you decide what to do with them. Its symptom fields follow the NICE guideline for endometriosis, so what you log is what a clinician assesses.
iPhone only?
Yes. Apple Health, Apple Watch and on-device storage carry a lot of the work. No Android version is planned right now.
so what's the catch?
pum cannot sell what it never receives. One developer builds it, and it will make money from a paid companion app, Circle, and never from your data.