Choose the right device for you

Analyzing your unique temperature data is key to how Natural Cycles works, but we know everyone’s routine is different. Browse our devices to find the right fit for you!

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What do I need to do?

Using our hormone-free birth control is as easy as 1, 2, 3.

Measure your temperature

Open the NC° app

Confirm daily fertility status

What's included?

NC° is 93% effective with typical use and 98% effective with perfect use — no matter which device you choose.

Apple Watch

Measure overnight
Most requested by users
Automatic sync

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NC° Thermometer

Measure in the morning
Free with the Annual Plan
Sync with Bluetooth

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Oura Ring

Measure overnight
Loved by users
Exclusive offer for users

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What our users say

Common questions

How do I use Natural Cycles with my Apple Watch?

Why do I need to use a device?

Do I need an Oura subscription to use Natural Cycles with Oura Ring?

Does data sync automatically from the NC° Thermometer?

How do I get my Oura Ring discount?

The future of  hormone-free birth control is here

Go hormone-free