PCOSCycleOS

PCOSCycleOS is a private, offline tracker built for the way PCOS bodies actually work. The cycle predictor adapts to 28-90+ day cycles, not assumed 28 days. Twelve daily symptoms (acne, hair loss / hirsutism, mood swings, fatigue, bloating, cramps, sleep issues, cravings, brain fog, anxiety, pelvic pain, libido shift) rated 0-5. Basal body temperature graph with sustained-shift detection and cervical mucus log including multiple-mucus-surge cases. Ovulation guess from BBT shift + EWCM combination. Ovarian cyst flare logger with side, pain 0-10, type, duration, and what helped. Bleeding and spotting tracker for mid-cycle pattern detection. Hormone phase narrative (estrogen, progesterone, LH state) for every day. Coefficient of variation flag against the ASRM clinically irregular threshold. JSON export and import. Every input saves locally to your device. Nothing goes to a server. No account, no subscription, no app store, no annual fee, no health data sold to advertisers. Works on laptop in any browser, and adds to your iPhone or Android home screen as a standalone app for offline use.

WHAT'S INCLUDED

• Today dashboard - cycle day, phase guess, quick severity, predictions
• PCOS-aware cycle tracker, 28-90+ day cycles, 5-week calendar
• 12 symptoms 0-5 daily, 7-day averages, trigger pills
• BBT graph + cervical mucus log + ovulation guess (BBT shift + EWCM)
• Bleeding and spotting tracker, 30-day mid-cycle pattern view
• Cyst flare logger - side, pain 0-10, type, duration, relief
• Patterns - cycle CV %, ASRM irregularity flag, symptom-phase correlation
• Hormone phase narrative for every cycle day
• Settings - profile, cycle preferences, JSON export / import / reset
• 100% private - data never leaves your device
• Single HTML file - laptop + iPhone + Android home screen, fully offline

100% PRIVATE AND OFFLINE

Your cycle and symptom data is sensitive. This app never sends a single byte to a server. No account, no cloud, no analytics, no tracking. All your symptom severity, cycle history, BBT, mucus, bleeding, and cyst flare data lives only on your device. Works completely offline.

WORKS ON ALL DEVICES

Open on laptop, add to home screen on iPhone (Safari) or Android (Chrome) as an app. One file, all devices.

INSTANT DOWNLOAD

Download once, use forever. No subscription, no renewal, no expiry.

PERFECT FOR

• Women diagnosed with PCOS, especially with irregular cycles
• Women TTC with PCOS and 28-day apps that miss the fertile window
• Anyone post-pill with returning irregular cycles needing data
• Anyone tracking ovulation via BBT and EWCM
• Women with recurring ovarian cyst pain who want pattern data for their gyno
• Women who refuse to put cycle data into a cloud period app
• Anyone who wants symptom severity, BBT, mucus, bleeding, cyst flares, and patterns in one private place

Questions? Message us on Etsy - we reply within 24 hours.

Disclaimer: This is a personal tracking and journaling tool. It is not medical advice and does not replace your doctor, endocrinologist, or registered dietitian. Always consult your healthcare provider for diagnosis and treatment.