Bloom
Fertility & Cycle Tracking
A privacy-first fertility and cycle tracking app for iOS. Track your period, predict ovulation, chart your basal body temperature, and understand your body — with your data always under your control.
Coming Soon
Everything you need to understand your cycle
Bloom combines multiple fertility tracking methods into one beautifully simple app, helping you make informed decisions about your body.
Period Tracking
Log your period with flow intensity levels. Bloom learns your patterns to predict future cycles with increasing accuracy.
Ovulation Prediction
Data-driven fertility predictions powered by your cycle history, BBT shifts, and OPK results — improving with every cycle.
BBT Charting
Chart your basal body temperature with automatic coverline calculation and ovulation confirmation.
Cervical Mucus
Track cervical mucus changes across five levels from dry to egg white, with real-time fertility context.
OPK Logging
Record ovulation predictor kit results to detect your LH surge and pinpoint your most fertile window.
Insights & Analytics
Cycle statistics, conception probability scoring, and prediction confidence that grows with your data.
Cycle Phases
Understand your menstrual, follicular, ovulation, and luteal phases with built-in educational content.
Privacy First
All data stored locally on your device. Optional iCloud sync. No third-party analytics. No data selling.
Apple Health
Optionally sync menstrual data, BBT, and more with Apple HealthKit for a complete health picture.
Designed with care
A clean, intuitive interface that makes tracking feel effortless.
Home
Calendar
Daily Log
Your body, your data
We believe your most intimate health data should stay exactly where it belongs — with you.
On-Device Storage
All your health data lives on your iPhone. Nothing is sent to external servers.
Zero Analytics
No tracking, no usage analytics, no behavioral data collection. Ever.
Never Sold
Your data is never shared with or sold to third parties. Period.
Start understanding your cycle
Download Bloom and take control of your fertility journey with confidence and privacy.
Coming Soon