Wren: PCOS Cycle & Symptoms

Most trackers guess a date and hope. Wren gives you an honest forecast range based on your own cycle history - built for cycles that don't run on 28 days.

Most period trackers assume a 28-day rhythm and hand you one confident date. If your cycles run 34 days, then 61, then 40, that answer was wrong before you read it.

Wren is built for cycles that don't follow the rules.

AN HONEST FORECAST Instead of inventing a date it can't stand behind, Wren shows a range - "likely Aug 20 to Sep 16" - and tells you how confident it is, based on your own history. When there isn't enough data yet, it says so.

SEE YOUR CYCLES AS THEY ACTUALLY ARE Your real cycle lengths, drawn to scale. The irregularity you've been trying to describe to a doctor, visible in one glance.

THE SYMPTOMS THAT ACTUALLY COME WITH THIS Not generic cramps and mood. Jawline acne, scalp shedding, unwanted hair, carb cravings, fatigue crashes, bloating, low mood, poor sleep - logged in seconds, on a simple scale.

YOUR LABS, IN ONE PLACE Testosterone, AMH, fasting insulin, HbA1c, vitamin D and more - recorded over time and plotted against typical ranges for context. Wren never interprets your results; it just makes sure you have them.

A SUMMARY YOU CAN ACTUALLY HAND OVER Turn months of tracking into a clear, shareable summary for your next appointment. Cycle lengths, symptom frequency, lab history - the things you always mean to mention and never remember.

FIND YOUR PATTERNS Wren compares your recent weeks against the ones before, and your bleeding days against the rest of the month, to surface what's actually shifting.

PRIVATE BY DESIGN Your health log is stored only on this device. There's no account to create, and nothing you log is ever uploaded. We can't see your data - not because we promise not to look, but because it never reaches us.

WREN PREMIUM Unlocks your forecast range, full cycle history, the lab log and appointment summary, pattern-finding, and supplement tracking. Monthly or yearly.

Wren is a tracking and education tool. It does not diagnose, interpret results, or recommend treatment, and it is not a contraceptive. Always talk to your clinician.

SUBSCRIPTION DETAILS Wren Premium is an auto-renewing subscription, offered monthly or yearly. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription in your Apple Account settings. Prices are shown in the app in your local currency.

Terms of Use (EULA): https://jmarrr.github.io/legal/wren-terms.html Apple standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://jmarrr.github.io/legal/wren-privacy.html