PCOS/PMOS is not a calendar problem.
It is a whole-body one.

Most cycle apps exist to predict a date.
A wrong one every month teaches you to distrust your own body.

Cycles vary, often by weeks. Talira draws each of yours at the length it was, so the spread is what you see — and you learn about your own.

The problem

No model can forecast an event that may not happen.

Today’s cycle apps run sophisticated models, and for regular cycles they work. But prediction assumes an event is coming. In PCOS/PMOS, ovulation is often late, irregular, or absent, so a predicted date is often wrong. Talira shows the cycles you recorded, at the lengths they actually were.

Six cycles, at the lengths they were. The shortest is 26 days, the longest 47 — no single expected date could have fit them.

No due dateNo expected date on your screens. An optional prep span, off unless you turn it on, is labelled as an estimate.
No fertile windowNot for contraception or conception.
No score for your bodyNothing graded or ranked.
No streaksNothing to keep up.
No fasting, everMeal timing is optional, and silent in pregnancy and on low days.
No diagnosisNot of ovulation, PCOS/PMOS, or mood.

What PCOS/PMOS actually is

Several signals, not one. That is why it was renamed.

PCOS/PMOS is several signals, not one, and none of them means much on its own. Together, over time, they make sense. Talira keeps them together — so the whole can be understood, by you and by the doctor who reads it with you.

That is why, in May 2026, a global consensus of more than 50 patient and professional organizations, published in The Lancet, replaced polycystic ovary syndrome with polyendocrine metabolic ovarian syndrome. Polyendocrine. Several hormones, not one organ. Metabolic. Insulin, weight, blood sugar. Ovarian. The cycles — one part of three. Talira records all three.

Cycles

Bleeding, spotting, and the gaps between. Medicine-affected cycles set aside, not averaged in.

Skin & hair

The changes that rarely make it into a period app, tracked at the pace they actually change.

Metabolism

Blood sugar, cholesterol and blood pressure when you add them — with energy, sleep, movement and meals. The part tied to everything else.

And how long it lasts

PCOS/PMOS does not switch off at midlife.

Most apps are built for the reproductive years alone. Talira describes the whole arc — and never says when you will reach a stage. That would be prediction. This is education.

Early years

Cycles can take up to about three years to settle; after that, the adult guide applies.

Reproductive years

Where most apps stop.

Midlife

Cycles lengthen or briefly steady. Perimenopause and PCOS/PMOS blur together.

Later years

The cycle questions end. The metabolic story does not.

What that looks like

Quiet on the surface. Careful underneath.

Talira’s five screens, captured from the app as it runs, with fictional data.

Free

Log the day. As much or as little as you like.

Cycle day, period, signs, sleep, energy and mood. Your cycle pattern builds as you record it — the longest gap so far, right on the screen.

Cycle day 11Recorded, not predicted

The Today screen: the day card showing cycle day 11, the last six cycle lengths (26–47 days) and 12 cycles on record, the last four weeks of logging, and the Log today card.