Clue Period & Cycle Tracker icon
Clue Period & Cycle Tracker: Comprehensive Review of the Science-Based Monitoring App

by BioWink GmbH

Clue provides evidence-based menstrual cycle tracking with gender-neutral design. The app serves users tracking fertility, pregnancy, or general cycle awareness through scientifically validated predictions and comprehensive symptom logging.

Detailed Review

Clue Period & Cycle Tracker stands as a scientifically-grounded menstrual health application developed by BioWink GmbH, offering comprehensive cycle monitoring through an evidence-based approach. The application distinguishes itself in the crowded health tracking market through its research-backed methodology and commitment to data privacy, operating from its Berlin headquarters under strict EU data protection regulations. The application's core functionality encompasses period prediction, fertility window tracking, and extensive symptom logging across physical, emotional, and behavioral categories. Users can monitor over 30 health indicators including mood fluctuations, energy levels, sleep patterns, and physical symptoms. The platform offers specialized modes for conception tracking and pregnancy monitoring, providing tailored insights for different reproductive stages. Data visualization presents cycle patterns through clean charts and temporal analysis, enabling users to identify correlations between cycle phases and various health metrics. User experience demonstrates thoughtful design with intuitive navigation and gender-neutral language throughout the interface. The clean, minimalist aesthetic prioritizes functionality while reducing visual clutter. Real-world usage patterns show consistent engagement across tracking activities, with users frequently utilizing the notification system for period predictions, fertility windows, and symptom reminders. The application maintains accessibility through both free and premium subscription models, with Clue Plus offering enhanced analytics and personalized insights. User feedback consistently highlights several positive trends, including appreciation for the scientific approach and inclusive design. Reviewer the_creature_likes_bread (2025-07-15) specifically praised the gender-neutral language as 'a huge plus for me as a nonbinary person.' Multiple users including Mitvr (2025-07-15) reported successful use through pregnancy tracking phases, while mahshad zare (2025-07-02) noted exceptional customer support responsiveness. Some limitations emerge regarding age restrictions, as Narine h (2025-07-07) encountered when attempting to setup the app for a 12-year-old due to the 13+ age requirement. The application demonstrates particular strength in scientific validation and inclusive design, though faces limitations in younger user accessibility and regional payment restrictions as noted in reviews. Ideal use cases include evidence-based cycle monitoring for adults seeking either contraception management, conception planning, or general health awareness. The platform serves most effectively for users preferring data-driven insights over anecdotal approaches, with particular value for LGBTQ+ users seeking inclusive reproductive health tools.

Key Features

  • Science-based cycle predictions using peer-reviewed algorithms to forecast periods and fertility windows with medical-grade accuracy
  • Comprehensive symptom tracking covering 30+ physical and emotional indicators to identify patterns across menstrual phases
  • Gender-neutral interface design that accommodates diverse users through inclusive language and customizable tracking categories
  • Pregnancy mode providing specialized tracking for prenatal symptoms and health metrics during gestation periods
  • Data encryption and EU privacy compliance ensuring user health information remains secure and confidential
  • Multi-device synchronization allowing seamless access to cycle data across iOS platforms with cloud backup

Why Users Love It

Evidence-based predictions
Inclusive design approach

Perfect for: Adults seeking scientific menstrual cycle tracking with inclusive design

Screenshots

Clue Period & Cycle Tracker screenshot 1Clue Period & Cycle Tracker screenshot 2Clue Period & Cycle Tracker screenshot 3Clue Period & Cycle Tracker screenshot 4Clue Period & Cycle Tracker screenshot 5Clue Period & Cycle Tracker screenshot 6

Ranking History

Track Clue Period & Cycle Tracker's performance in Health & Fitness over the last 30 days

Top 5
Top 10
Top 15
Below 15

Current Rank

#50

Best Rank

#50

All-time high

Average Rank

#50

30-day average

User Reviews

TheMaFugginDavis
Oct 23, 2025

Love the functionality of this app. I was able to trace my anxiety symptoms back to my hormone cycle and get real help. Used it for years Love the functionality of this app. I was able to trace my anxiety symptoms back to my hormone cycle and get real help.

alloggius
Oct 26, 2025

Ive been using this app for 7 years, since January 2018. And its just great, im glad the updates got better over time and the tracking too. I have a longer relationship with clue than with my husband 😂 Its great Ive been using this app for 7 years, since January 2018. And its just great, im glad the updates got better over time and the tracking too. I have a longer relationship with clue than with my husband 😂

🌿🌺🌸🌼🌿
Oct 27, 2025

Overall, this is a good app. It has enough features without paying anything, it doesn’t have ads (it asks you if you want to subscribe when you open the app or if you click on a feature that needs a subscription but you can easily close it), and it has more features than Apple Health’s cycle tracking. Feature suggestions: - Being able to import data from Apple Health Cycle Tracking all at once. It takes a long time and it’s tedious to manually insert older data. - Being able to log more things, like very light flow (not just light, medium, heavy, and very heavy), the color of period flow that isn’t spotting, or more types of exercise, like aerobic exercise that isn’t walking, running, cycling, swimming, or pilates. - A watch app. - The calendar scrolling smoothly (not reloading and moving slightly when you get to the end of the loaded part). Because of that it makes it harder to navigate. Good app for period tracking Overall, this is a good app. It has enough features without paying anything, it doesn’t have ads (it asks you if you want to subscribe when you open the app or if you click on a feature that needs a subscription but you can easily close it), and it has more features than Apple Health’s cycle tracking.Feature suggestions: - Being able to import data from Apple Health Cycle Tracking all at once. It takes a long time and it’s tedious to manually insert older data.- Being able to log more things, like very light flow (not just light, medium, heavy, and very heavy), the color of period flow that isn’t spotting, or more types of exercise, like aerobic exercise that isn’t walking, running, cycling, swimming, or pilates.- A watch app.- The calendar scrolling smoothly (not reloading and moving slightly when you get to the end of the loaded part). Because of that it makes it harder to navigate.

Asal567
Oct 29, 2025

Easy to use! Helps me keep track of my period. Easy to use Easy to use! Helps me keep track of my period.

maxlovesnanit
Oct 27, 2025

Found the ovulation to be pretty accurate. Now use primarily for period Great period and ovulation tracker Found the ovulation to be pretty accurate. Now use primarily for period

App Details

Developer

BioWink GmbH

Platform

ios

Rating

4.8

Last Updated

11/5/2025