Take control of your cycle — naturally. Natural Cycles helps you understand your body, track fertility, and plan (or prevent) pregnancy with science, not hormones.
Get 20% off an annual plan through the link below.
As low as $6.66 /month
How does Natural Cycles work?
Natural Cycles uses your daily temperature to detect ovulation and predict fertile days. By tracking changes in your basal body temperature — either manually or via your Oura Ring — the app identifies your cycle patterns and helps you understand when you’re fertile or not.
Is Natural Cycles accurate for birth control?
Yes — when used correctly, Natural Cycles is 93% effective with typical use and 98% effective with perfect use. It’s the first FDA-cleared, hormone-free birth control app. Consistency is key — you’ll get the best results by logging your temperature daily or connecting your Oura Ring.
Do I need an Oura Ring to use Natural Cycles?
No — you can use Natural Cycles on its own by taking your morning temperature with a compatible thermometer. But if you have an Oura Ring, the integration automatically syncs your temperature data, making tracking completely effortless.