Fertility trackers

Unlike other basal body thermometers, our medically tested devices combine a sophisticated sensor and a science-backed algorithm with >35 years of development.

Detecting temperature change from hormonal fluctuations to the hundredth of a decimal point.

Across several clinical studies and analysis of over 10 million cycles, our algorithm is proven to pinpoint fertile and non-fertile days with 99.4% accuracy.

2 products
2 products
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Daysy - Period wisdom boutique Daysy - Period wisdom boutique

Daysy - Your personal fertility tracker (incl. free app DaysyDay)

$550.00
$550.00
Lady-Comp - Period wisdom boutique Lady-Comp - Period wisdom boutique

Lady-Comp

$699.00
$699.00 -10%
$780.00