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Best Productivity ResourcesBy Shushant LakhyaniVerified creator

Mobile App

Clue

A science-based period and cycle tracker with a free core app.

Visit Clue4.6

  • Rating

    4.6 / 5

  • Pricing

    Freemium

  • Difficulty

    Beginner

  • Works on

    iOS, Android

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What is Clue?

Clue is a period and cycle tracking app that describes itself as science-based and privacy-first. You log symptoms quickly, see how your cycle relates to your mood, and get predictions for your period, PMS, ovulation and fertile days. The free app includes essential cycle statistics and basic predictions, while Clue Plus adds advanced insights, goal-based tracking modes such as Conceive, Pregnancy and Perimenopause, sharing with a loved one and expert content. Clue says it has never sold health data and follows German and EU privacy standards. It is on iOS and Android.

Pros: what Clue does well

  • Free cycle tracking with basic predictions
  • Shows links between your cycle and mood
  • Follows German and EU privacy standards

Cons: where it falls short

  • Advanced insights and special modes need Clue Plus
  • The site does not list the Plus price

Who Clue is for

Anyone who wants to understand and predict their cycle.

Who can skip it

People who only need a simple calendar reminder.

Clue alternatives

Not sold on Clue? These do a similar job, and each card says what it has in common.

All Habit Building resources

DAREBEE

Focus: workouts, fitness and home exercise. Shares health with Clue. A website, not a mobile app. Free (Clue: Freemium). Adds Web. Rated 4.7 (Clue: 4.6).

WebsiteFreeWeb
4.7Visit

Oura Ring

Focus: Wearable Tech, Sleep Tracking and Biofeedback. Shares Health with Clue. A Physical Product, not a mobile app. Expensive (Clue: Freemium). Same 4.6 rating.

Physical ProductExpensiveiOS, Android
4.6Visit

wger

Focus: fitness, workout and nutrition. Shares health with Clue. A web app, not a mobile app. Free (Clue: Freemium). Adds Web. Rated 4.4 (Clue: 4.6).

Web AppFreeWeb
4.4Visit

openGym

Focus: fitness, workout tracker and self-hosted. Shares health with Clue. A web app, not a mobile app. Free (Clue: Freemium). Adds Web. Rated 4.3 (Clue: 4.6).

Web AppFreeWeb, iOS
4.3Visit

Daylio

Focus: Journaling, Mood Tracker and Habit Tracker. Also in Personal Productivity and Habit Building, like Clue. Rated 4.8 (Clue: 4.6).

Mobile AppFree planiOS, Android
4.8Visit

Finch

Focus: self-care, habits and mood tracker. Also in Habit Building and Personal Productivity, like Clue. Rated 4.8 (Clue: 4.6).

Mobile AppFree planiOS, Android
4.8Visit

Free alternatives to Clue

Want to spend nothing? These free picks cover similar ground.

How We Feel

Focus: mood journal, emotions and mental health. Also in Habit Building and Personal Productivity, like Clue. Free (Clue: Freemium). Rated 4.7 (Clue: 4.6).

Mobile AppFreeiOS, Android
4.7Visit

Medito

Focus: meditation, mindfulness and sleep. Also in Habit Building and Personal Productivity, like Clue. Free (Clue: Freemium). Rated 4.7 (Clue: 4.6).

Mobile AppFreeiOS, Android
4.7Visit

Smiling Mind

Focus: meditation, mindfulness and sleep. Also in Habit Building and Personal Productivity, like Clue. Free (Clue: Freemium). Same 4.6 rating.

Mobile AppFreeiOS, Android
4.6Visit

f.lux

Focus: blue light, screen colour and sleep. Also in Personal Productivity and Habit Building, like Clue. A desktop app, not a mobile app. Free (Clue: Freemium). Adds macOS, Windows and Linux. Same 4.6 rating.

Desktop AppFreemacOS, Windows
4.6Visit
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