built for endo. built for you.

your period app told you your cycle was wrong
your doctor said track your symptoms, then shrugged
we built something that actually listens

adaptive cycle prediction

Built for cycles that aren't textbook. Calibrates to your IUD or hormonal treatment. Tracks phantom cycles during amenorrhea. Honest about its confidence.

symptom analysis

Your symptoms aren't random. Pum finds the relationships — sleep and pain, cycle phase and flare-ups, before and after treatment changes. Validate what you feel. Plan for what's coming.

cycle-synced reminders

Medications timed to your cycle phase, not just a daily alarm. Tranexamic acid before your period. Iron during. Set it once — Pum adjusts as your cycle moves.

built for endo

Not a period tracker with symptoms bolted on. GI symptoms, bloating, pelvic pain, fatigue — the things other apps don't ask about.

private by design. free to use.

no account, on-device Your health data lives on your phone, nowhere else. iCloud sync if you want it.
apple watch HRV, wrist temperature, sleep stages. Rich biometric data feeding the analysis — no extra effort.
apple health Bring your history when you switch. Prior cycle data makes predictions more accurate from day one.
export everything Structured reports for your doctor. Or export into a prompt for the AI of your choice.
free, no predatory paywalls Core features are free. Always. Pum will never hold your data hostage.
30 seconds to start Download to logging in under 30 seconds. No interrogation. No 50-question onboarding.
research-backed Endometriosis is a highly active frontier of scientific research. Pum makes the latest findings accessible and actionable.
never sells your data No third-party analytics. No tracking. No ads. Your body is not a product.

pum circle

The partner app. Share what you choose with those closest to you — so they can understand, support, and show up when it matters.

get early access

Pum is launching soon on the App Store. Join the waitlist and we'll let you know.