MiniCycle Blog
Notes on cycle prediction, ovulation estimates, privacy, widgets, and the product decisions behind MiniCycle.
Cycle health
Getting pregnant on your period is unlikely but not impossible, mostly on short cycles with long periods. Here is why it happens and why a calendar is not contraception.
Read the guideCycle statistics
MiniCycle's statistics tab summarizes your recent cycle length and period length from saved dates, and shows up to 24 recent data points. Here is how to read it.
Read the guideCycle health
Period blood color usually just reflects how long blood took to leave: pink, red, and brown are all normal. Here is what the color means and what actually matters.
Read the guideHow it works
MiniCycle logs periods, predicts ovulation, and sends reminders entirely on your phone, so it works offline. Here is what needs a connection and what doesn't.
Read the guideCycle health
PMS shows up after ovulation and fades within a few days of your period. Here is what counts as normal premenstrual change, what doesn't, and when to see a doctor.
Read the guidePrivacy
MiniCycle keeps your period dates and notes on the device, while its Firebase Analytics logs only usage events like screen views, never your cycle data. Here is the exact split.
Read the guideCycle health
Most periods lose only about two to three tablespoons of blood over several days. Here is what counts as a heavy period, the practical signs to watch for, and when to see a doctor.
Read the guideCycle prediction
MiniCycle places past fertile windows from the real gaps you logged and the next one from a forward estimate. Why the two differ, and how each is worked out.
Read the guideCycle health
A stressful month or a long trip can move your period. How stress, sleep, and travel shift the cycle, why a delay usually means ovulation moved, and what's normal.
Read the guideLogging
Tap a date, pick period start, and MiniCycle fills the end with your period length. How logging start and end works, the seven-day replace rule, and the 14-day cap.
Read the guideCycle health
Heading to a period appointment? What to track in the weeks before, which dates and symptoms are worth bringing, and how a clear record makes the visit faster.
Read the guideWidget
Add the MiniCycle period widget to your iPhone home screen in about five taps. What the widget shows, why it matches the app, and what to check if it looks empty.
Read the guideCycle health
More than half of people who menstruate get period pain. What normal menstrual cramps feel like, what eases them, and when cramps are worth a doctor's visit.
Read the guideSettings
Reset records wipes every period date, note, and activity mark in MiniCycle, and it cannot be undone. What it clears, what it keeps, and how to back up first.
Read the guideGetting started
New to tracking? What to write down from day one, how a cycle is counted, why your first months of predictions stay rough, and the few changes worth a doctor's note.
Read the guideNotes
Tap any date in MiniCycle to add a daily note: symptoms, flow, pain, mood, up to 999 characters. Notes stay on your device by default and never appear on the widget.
Read the guideCycle health
The fertile window is about six days: five before ovulation, one after. Why the window exists, and why any calendar estimate of it stays approximate.
Read the guideSettings
MiniCycle defaults to Korean. How to switch the app to English in two taps, choose System, Light, or Dark appearance, and what the home-screen widget follows.
Read the guideCycle health
Cycles in perimenopause can shift by a week, skip months, or run heavier. Which period changes are expected before menopause, and which ones need a doctor.
Read the guidePrivacy
MiniCycle logs sexual activity as a purple dot on the calendar. One switch hides every trace, and showing it again takes Face ID. What hiding does and doesn't do.
Read the guideCycle health
Irregular periods usually have ordinary causes, but some patterns deserve a clinician. What counts as irregular, when to see a doctor, and how tracking actually helps.
Read the guideSettings
MiniCycle can estimate your cycle and period length, or let you set them by hand (21–42 and 1–10 days). When auto fits, when manual fits, and why the estimate uses a median.
Read the guideCycle health
Spotting between periods has many ordinary explanations, from ovulation to new birth control. Learn what is common, when to see a clinician, and how to track it.
Read the guideSettings
MiniCycle's calendar can start the week on Sunday or Monday. Why calendars disagree, why the choice changes only the layout, and how the widget stays in sync.
Read the guideCycle basics
Ovulation signs explained: the cervical fluid change before ovulation, the basal body temperature rise of about 0.3°C after it, and what ovulation tests show.
Read the guideCalendar
What the MiniCycle calendar colors mean: solid pink records, striped expected periods, the sky-blue fertile window, and the small marks under each date.
Read the guideCycle basics
A normal menstrual cycle length is a range, not a single number. See the 24–38 day guideline, how much variation is common, and when to ask a clinician.
Read the guideRecording
Logged a period on the wrong day? Learn how to edit period dates in MiniCycle: move a start, adjust an end, delete a record, and what happens to predictions.
Read the guideCycle basics
Learn the menstrual cycle phases: menstruation, the follicular phase, ovulation, and the luteal phase, what each one does, and why their lengths vary.
Read the guideReminders
MiniCycle can remind you 0–3 days before an expected period, the fertile window, or ovulation day. Learn how to set up period reminders and pick a time.
Read the guideCycle health
A late period has many non-pregnancy explanations, from stress to travel and illness. Learn common reasons a period can be late and when to ask a clinician.
Read the guideBackup
MiniCycle stores records locally by default and offers optional iCloud Sync. Learn what to check before moving to a new iPhone.
Read the guideCycle prediction
Learn how MiniCycle estimates period dates, ovulation, and the fertile window using recent cycle records, median-based calculations, and published menstrual cycle research.
Read the guideWidget
A practical guide to period calendar widgets, including glanceable cycle status, prediction labels, and why MiniCycle keeps its iPhone widget simple.
Read the guidePrivacy
MiniCycle keeps records local by default, offers optional iCloud Sync, and does not require a MiniCycle account.
Read the guideCycle statistics
Understand cycle length, period length, recent averages, and why MiniCycle shows simple statistics instead of turning every cycle into a score.
Read the guidePrediction limits
Period tracker predictions can help with planning, but they are not medical advice, contraception, or a pregnancy test. Learn the limits MiniCycle makes explicit.
Read the guide