Home's circular cycle tracker shows your estimated cycle day, current phase, and next ovulation or period timing for the selected calendar day. Drag the ring to preview other days, or swipe the text panel below for approximate moon context—estimates only, not clinical timing.
What the cycle ring shows
- Cycle day number and current phase name for the calendar day selected on Home.
- Four gradient phase arcs around the ring with a fixed indicator dot at the top.
- A next ovulation or next period estimate below the ring when cycle data is available.
- An approximate moon illustration in the ring center for calendar context—it is not synchronized to your menstrual phase.
- Phase arcs, cycle day, and next-event timing are estimates from logged period starts and proportional phase lengths—not clinical timing.
On Home — the circular cycle tracker
The preview below shows the date header and weekly strip directly above the cycle ring and hormone chart on Home.
01
Date header
Sits above the ring on Home. The ring, Daily check-ins, and hormone chart all reflect the calendar day shown here.
02
Phase arcs
Four colored segments—menstrual, follicular, ovulatory, and luteal—wrap the ring. A small indicator dot stays fixed at the top (12 o'clock) to mark your position in the cycle.
03
Day
Shows your estimated cycle day number (for example, Day 14) for the selected Home date.
04
Phase name
The current phase name appears in uppercase below the ring—MENSTRUAL, FOLLICULAR, OVULATORY, or LUTEAL. When phase cannot be estimated, the label reads Let us know.
05
Next Ovulation
When ovulation is the nearer milestone, the line below the phase shows Next Ovulation with a day count, Next Ovulation: 1 day, or Ovulation Expected Today.
06
Next Period
When your period is the nearer milestone, the line shows Next Period with a day count, Next Period: 1 day, Period Expected Today, or a late variant such as Period Expected Today (2 days late).
07
Approximate moon
An astronomical moon illustration fills the ring center. It reflects the calendar date for context—it does not predict period or ovulation.
Preview another day on the ring
You can also change the selected day from the date header or weekly strip—see Changing the date for those paths.
01
Cycle ring
Drag horizontally on the ring arc—not the weekly strip—to scrub between calendar days. The date header and weekly strip follow while you drag; the day commits when you release.
02
Daily check-ins
Symptoms and Life Factors rows on Home update to match the day you commit on the ring.
03
Go to Today
When you have browsed to another day, tap Go to Today in the date header—not below the ring—to return Home to the current calendar day.
Moon flip back
01
Phase name
Swipe horizontally on the phase, day, and next-event text below the ring to flip to the moon side.
02
New Moon
The flip side shows the current moon phase name—such as New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, or Waning Crescent.
03
Next major moon transition
A countdown line estimates when the next major moon phase arrives—for example, a day count or today when the transition is expected.
04
Swipe back
Swipe horizontally again on the text panel to return to the cycle front with phase, day, and next-event lines.
Start a new cycle from Home
01
start new cycle
Appears below the ring only when today is selected, you are in an open luteal cycle, and you are within three days of the predicted cycle end. Tap to log a new period start in local storage.
02
Cycle ring
After you confirm, the ring refreshes to today with updated cycle day, phase arcs, and next-event estimates.
When cycle information is unavailable
- When no signed-in user or cycle context exists, the next-event area shows Cycle information is unavailable instead of ovulation or period estimates.
- If phase cannot be estimated for the selected day, the phase label reads Let us know.
- Logging cycle start dates improves cycle length and phase predictions on the ring—see Logging your cycle.
✦Phase arcs, cycle day, and next ovulation or period lines are estimates for self-tracking—not a diagnosis or exact clinical schedule. The moon in the ring center is approximate astronomical context for the calendar date; it is separate from your menstrual cycle.