Phaselle: Cycle Companion

Phaselle — Your personal cycle companion

Phaselle is a period and cycle tracking app designed to help you record your menstrual history, understand recurring patterns, and view estimated upcoming cycle events in one clear, private experience.

TRACK YOUR PERIOD

Log the days you bleed and keep a history of your periods and other bleeding records. Add flow intensity, pain level, and optional notes, then review or correct previous entries whenever needed.

SEE YOUR CYCLE AT A GLANCE

Use the Home and Calendar views to see your current cycle day, previous periods, estimated upcoming periods, and your position in the current cycle.

PERIOD, OVULATION & FERTILITY ESTIMATES

Based on your logged period history, Phaselle can provide calendar-based estimates for:

• Upcoming period dates
• Estimated ovulation
• Higher-fertility days
• Estimated fertile windows
• Menstrual, follicular, ovulation, and luteal phases

These predictions are estimates based on your recorded cycle history and may change as you add or correct information.

LOG SYMPTOMS, MOODS & WELLNESS

Record daily symptoms, moods, flow, discharge, energy, sleep, and other available wellness observations. Phaselle helps you look back at what you recorded and identify descriptive patterns across your cycle.

PERSONALIZED CYCLE INSIGHTS

Review useful summaries based on your own records, including:

• Average cycle length
• Average completed-period duration
• Cycle consistency indicators
• Symptom and mood summaries
• App-calculated prediction confidence based on available history

These indicators describe your logged history and should not be interpreted as clinical measurements or guaranteed prediction accuracy.

PRIVATE NOTES

Keep dated journal notes alongside your cycle information. Search, edit, and delete your notes whenever you want.

OPTIONAL AI ASSISTANT

Ask questions about menstrual cycles, symptoms, fertility, ovulation, and reproductive health. When you choose to use the AI assistant, limited cycle context and recent chat content may be sent to the AI service to generate an educational response.

AI responses may be incomplete or inaccurate and are provided for general informational purposes only.

REMINDERS

Enable supported local reminders for estimated periods, ovulation, fertile windows, and daily check-ins. You can also create your own custom reminders.

PREGNANCY MODE

If you choose to mark yourself as pregnant, Phaselle can pause future cycle estimates until you resume cycle tracking. Phaselle does not confirm pregnancy.

YOUR DATA, YOUR CONTROL

Core cycle tracking and calculations are stored and processed locally on your device. You can edit or delete individual records, protect access with an optional PIN or device biometrics, export a PDF summary for selected months, or reset your local app data.

IMPORTANT HEALTH INFORMATION

Phaselle is not a medical device and does not diagnose, treat, cure, or prevent any medical condition.

Period, fertility, ovulation, and cycle-phase predictions are estimates. They cannot confirm ovulation or pregnancy and should not be used as contraception or as a guarantee that pregnancy will or will not occur.

Always consult a qualified healthcare professional for medical advice, diagnosis, or treatment. Seek appropriate medical care if you have concerning, severe, persistent, or worsening symptoms.

Know your body. Understand your cycle.