Tap the first day of your last period
Your phases are colored at once, using your cycle length.
Scroll through a 28-day cycle
Day1
Menstruation
Day 1 is the first day of your period. The baseline window opens tomorrow.
Lab test timing · iPhone and iPad
Know which lab tests to take today.
Your doctor ordered FSH, progesterone or AMH on a specific cycle day. Enter the first day of your last period and Cycle Care tells you which tests fit today and which to wait for.
Free · iOS 16.6 or later
3.7 MB · no account
Try it nowSame rules as the app
CYCLE DAY3Menstruation
Cycle length
Good window today
FSHLHEstradiolBlood countFerritinProlactin
Wait for these
Progesteronein 17 days
hCGin 24 days
Zero trackingApple's label: Data Not Collected
1 dateNo account, no diary
9 testsWindows from WHO, ACOG, ESHRE
26 languagesChosen inside the app
“Take FSH on day 3.” Which day is day 3?
Hormone tests only mean something on the right cycle day. FSH, LH and estradiol belong to days 2 to 5. Progesterone belongs about a week before your next period, so on a 32-day cycle it is day 25, not day 21.
Get it wrong and the result misleads your doctor, and you repeat the visit next cycle. Period trackers predict periods. They don't tell you when to test.
One date in.
Today's tests out.
Three steps and about ten seconds. Everything below is the real app on cycle day 3.
See which tests fit today
And which would mislead today, with the days until their window opens.
Find a lab nearby
Tap the pin next to a test to open a nearby lab search in Maps.
Plan the next three cycles
See when each phase starts, so you can book the tests your doctor asked for weeks ahead.
Reminders that stay on your phone
The day before your period, on ovulation day and three days before your period. Turn each one on or off.
Your test dates, worked out
Enter the first day of your last period. Nothing you type leaves this page.
Cycle length
Pick the first day of your last period.
Privacy
Your cycle is nobody's business model.
Apple's privacy label for Cycle Care reads “Data Not Collected”. Every calculation runs on your iPhone.
- No accountNo email, no password, nothing to sign up for.
- No server, no analyticsWe have nowhere to store your data, and no tracking code in the app.
- Your iCloud onlyWith iCloud on, settings sync between your own devices.
When each test belongs in your cycle
The windows Cycle Care uses, from WHO, ACOG and ESHRE guidance. Day 1 is the first day of your period. Always follow your doctor's instructions.
| Test | Cycle days | Why then |
|---|---|---|
| FSH, LH, estradiol (E2) | 2–5 | Baseline hormone levels, early follicular phase |
| Blood count, ferritin | 2–5 | Baseline blood work around the period |
| Prolactin | 3–10 | Early to mid follicular phase |
| Progesterone | 7 days before period | Mid-luteal peak; day 21 only on a 28-day cycle |
| hCG pregnancy test | Last 2 days | From the day your period is due |
| AMH | Any day | Does not depend on the cycle |
Questions, answered
How does it work out which tests fit today?+
From the first day of your last period and your cycle length it counts today's cycle day, then checks each test against its window. Windows tied to the end of the cycle, like progesterone, move with your cycle length.
Is Cycle Care a medical device?+
No. It shows timing information for tests your doctor has ordered, based on WHO, ACOG and ESHRE guidance. It does not diagnose or recommend treatment. Always follow your doctor's instructions.
What if my cycle is irregular?+
Set your usual cycle length and update the start date when your period starts. After two recorded cycles, Cycle Care uses your own average. If your cycles vary a lot, ask your doctor which day to test.
Does Cycle Care collect my data?+
No. No account, no server, no analytics, and Apple's label reads “Data Not Collected”. With iCloud on, your settings sync between your own devices through your private iCloud.
Can it remind me?+
Yes: the day before your period, on ovulation day and three days before your period. Reminders are scheduled on your iPhone.
How much does it cost?+
Cycle Care is free on iPhone and iPad.
Your next test day is
one date away.
Free · iPhone and iPad · Data Not Collected