trackle

trackle is a German femtech brand built around a wearable sensor system and companion app that digitize the symptothermal method (STM) of natural family planning. Instead of relying on hormones, users insert the trackle sensor overnight; it measures core body temperature while they sleep, and in the morning they remove it, place it in its box, and enter cervical mucus quality into the app. The system combines both data streams to determine whether ovulation has occurred and to show the user's fertility status for the day, supporting both hormone-free contraception and targeted conception planning. The company behind the brand was founded in 2015 by Katrin Reuter together with her husband Maxim Loick, who developed the product out of Reuter's own need for a simpler way to practice natural family planning. Product development began with the founding, and in 2017 trackle presented the device on the German television show "Die Höhle der Löwen" (the German edition of Dragons' Den). None of the investors chose to invest, but the pitch drew strong praise, and the company continued on its own path. Two years after founding, trackle received certification as a manufacturer of a Class IIa medical device; further milestones included market entry in Germany, Austria and Switzerland, the launch of trackleCatch, and market entry in France. In 2021 the company received Class IIb medical device manufacturer certification, giving it approval as a contraceptive. trackle positions itself as the test-winning cycle computer and as a digital, hormone-free alternative for contraception and conception. Its marketing emphasizes that every woman has the right to know her own body, and it frames itself as addressing a gap in education about natural contraception. The brand reports that more than 100,000 users trust trackle, and its app carries high ratings across the Apple App Store and Google Play. The company operates as a private startup and sells its sensor system and app primarily in German-speaking markets and France.

trackle was founded in 2015 by Katrin Reuter and her husband Maxim Loick. The idea grew out of Reuter's own need: the cumbersome measurement and calculation required by natural family planning (NFP) led her to envision a method that simplified the process. Measuring overnight and automating data evaluation in an app became the defining features of the trackle system. With the company's founding in 2015, product development began. In 2017 trackle was a guest on the German television show "Die Höhle der Löwen," where it presented the innovative product. To help the jurors understand it, Reuter gave an introduction to the biology of the menstrual cycle. Although none of the jurors wanted to invest, there was great praise. Even without an investment from the show, trackle found its own way forward. Two years after the company was founded, trackle received certification as a manufacturer of a Class IIa medical device. Further milestones followed, including market entry in Germany, Austria and Switzerland, the launch of trackleCatch, and market entry in France. In 2021 trackle received certification as a manufacturer of a Class IIb medical device, and thus approval as a contraceptive. The brand's mission is framed around the idea that every woman has the right to know about her own body, and that education about natural contraception is still neglected. trackle aims to empower every woman and every person with a cycle to make reflected and conscious life decisions. Its sensor system determines the fertile window precisely according to the symptothermal method (STM), combining core body temperature and cervical mucus to reliably detect whether ovulation has occurred. The company reports that more than 100,000 users trust trackle, and it markets itself as the test-winning cycle computer among cycle computers.

• 2021

  trackle receives certification as a manufacturer of a Class IIb medical device and approval as a contraceptive.

• 2017

  trackle appears on the German TV show 'Die Höhle der Löwen'; no investment secured but strong praise received.

• 2017

  Two years after founding, trackle receives certification as a manufacturer of a Class IIa medical device.

• 2015

  trackle is founded by Katrin Reuter and Maxim Loick; product development begins.

• Market entry in Germany, Austria and Switzerland; launch of trackleCatch; market entry in France.

Test-winning digital cycle computer for hormone-free contraception and conception planning based on the symptothermal method.

• trackle sensor system

  A wearable sensor inserted overnight that measures core body temperature, paired with an app for cervical mucus entry and automated fertility evaluation according to the symptothermal method.

• trackle app

  Companion app that syncs with the sensor, accepts cervical mucus quality input, and displays the user's fertility status for the day.

• trackleCatch

  A product launched as one of the brand's milestones.

1. 1trackle: Hormonfrei & sicher verhüten mit NFPtrackle.de
2. 2Über uns: Die Geschichte hinter trackletrackle.de
3. 3tracklewikidata.org