Daysy cycle computer - smart cycle tracker for fertility measurement from Daysy

VERY ACCURATE - Based on your information and data from 10 million menstrual cycles, Daysy's algorithm calculates the non-fertile days with an accuracy of over 99%.

EASY TO USE - Measure your basal temperature below the Tongue and in just a few seconds Daysy shows you your current fertility status.

NATURAL FAMILY PLANNING - Thanks to Daysy you know exactly when you are fertile and when not.

FREE APP - In the "DaysyDay" app you can view details about your cycle and share them with your partner, doctor or our team of experts.

TECHNICALLY SOPHISTICATED - With Intuitive and simple operation, Bluetooth for data transfer to your smartphone and tablet as well as rechargeable battery via USB cable.

It's that easy to use Daysy: 

    Every morning when you wake up, you measure the temperature under your tongue.

    Enter when you are menstruating.

    Daysy evaluates your data and shows you whether you are fertile or not.

This inspires thousands of other Daysy users:

- Calculation of infertile days with over 99% accuracy

- Easy to use

- Free app

- Lifetime support

- Only pay once - no subscription!

- Made in Europe