MANIFESTOThe cycle deserves better. So we built it.
Plumm was born from frustration. Every cycle app we tried was reselling data, predicting an « average » cycle that belongs to no one, or talking down to us like patients. There was no app that treats you the way you deserve.
Zero judgment
Pill or not, baby or not — we don't care. We accompany you, that's all.
Zero resale
Your data is not a product. Ever.
Precision without overpromise
We're honest about what we know — and what we don't.
What we refuse
Apps that resell. Your periods, sex life, pregnancy — these are intimate medical data. We don't resell them. We don't share them. We don't even analyze them at our level — they stay on your phone.
Apps that judge. No guilt-tripping pop-up when you skip a log. No « you missed your goal ». No moralizing about your contraception or your life choices.
Apps that overpromise. Nobody can predict ovulation 100 %. The body isn't a clock. We'd rather tell you the truth than sell you a certainty.
What we believe
That your cycle is unique, and an app predicting from a « 28-day average » doesn't know you. Ours learns from you.
That your privacy has no price, even when the app is free. That's why we chose local-first from day one.
That health can be gentle. Roo, our mascot, isn't a gimmick — she embodies that intent. A companion, not a dashboard.
Our commitment
Plumm will stay free in its core scope. Always.
We will never add advertising. We will never resell your data. We will never guilt-trip you for missing a log.
If one day we break these promises, we no longer deserve the name Plumm.
Who is it for?
For everyone trying to better understand themselves. Those tracking their cycles, those trying to conceive, those who are pregnant, those on contraception.
Whatever your life, your body, your story — Plumm is on your side.
And what about Roo?
Roo is the little red panda who watches over your cycle. She changes expression depending on your mood, comforts you on hard days, celebrates with you when you take your pill. She is the face of Plumm.
Because we deal with an intimate subject. And we decided it could be gentle.