🔒 100% on your device

Know your cycle.
Keep it private.

Bloom tracks your fertility with the full symptothermal method: temperature, cervical mucus, and calendar prediction. Every reading stays on your iPhone. No account, no cloud, no trackers.

Download on the App Store

Pay once. Private on-device AI. No subscription, no ads.

Bloom cycle ring showing the current day and fertility score
Bloom is a tracking and education tool, not a medical device, and not a substitute for professional medical or contraceptive advice. Privacy · Support · support@yuzi.nl