Clue
Science-based period and cycle tracker covering conception, pregnancy and perimenopause.
Updated · AppBreakup editorial · iOS, Android
Is Clue free?
Free plan, plus paid plans
- Free plan:
- Yes
Checked on Clue's site Nov 8, 2026
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All 6- Verified facts
- 4 of 4
- Alternatives ranked
- 6
- Approved reviews
- 0
- Visits sent from here
- 0
About Clue
Clue is a period and cycle tracking app from a Berlin-based, women-led company whose co-founder Ida Tin coined the term femtech. You log your period, symptoms, moods and other signals, and it predicts periods, PMS and ovulation while showing how your cycle affects you over time. A free account gives essential cycle statistics and basic predictions. Clue Plus, a subscription, adds advanced insights and pattern analysis, separate tracking modes for trying to conceive, pregnancy and perimenopause, more customisation and content from medical experts. Clue works with research institutions on women's health studies and is used in more than 190 countries. It suits people who want a clean, neutral-toned tracker with a scientific approach rather than a lifestyle feed. It runs on iPhone and Android and supports some wearables.
Best for: People who want a straightforward, science-led cycle tracker.
Clue pricing (checked Nov 8, 2026)
Each line is quoted from Clue's own site, with the page it came from.
| Plan or term | What it says | Checked | Source |
|---|---|---|---|
| Free plan | Yes | Nov 8, 2026 | helloclue.com |
Pros and cons
What works
- Clean, neutral design without a busy content feed
- Modes for conception, pregnancy and perimenopause
- Free account covers basic predictions
Why people leave
- Advanced insights and most modes need Clue Plus
- Free predictions are basic
- No web app for logging
Clue vs Flo, Ovia and Fitbit
From each app's listing and the prices verified on its own site. A dash means we haven't verified it yet.
Top Clue alternatives
See all 6- 1
Flo68.8More features and content on the free tier, plus an Anonymous Mode, for those who want an all-in-one app.
- 2
Ovia61.8Worth checking if your employer or insurer offers it, since covered members also get one-to-one sessions with a care team.
- 3
Fitbit54.4Logs cycles next to sleep, heart rate and temperature from the watch, so wearers keep everything in one app.
- 4
Glow42.3Adds fertility-focused tools, partner sharing and a big community.
- 5
Premom42.3Charts ovulation tests and BBT for people actively trying to conceive.
Why people left Clue
In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.
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Reviews
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Clue: common questions
What is Clue?
Clue: Science-based period and cycle tracker covering conception, pregnancy and perimenopause. Best for people who want a straightforward, science-led cycle tracker. Available for iOS and Android.
Is Clue free?
Clue has a free plan and paid plans. Free plan: Yes (checked on Clue's own site).
How much does Clue cost?
Clue is free with paid plans. Free plan: Yes. Checked on Clue's own site, November 2026.
Is Clue open source?
No, Clue is not open source.
What platforms does Clue run on?
Clue is available for iOS and Android.
What are the best alternatives to Clue?
The highest-ranked Clue alternatives right now are Flo, Ovia and Fitbit. See the full ranked list for pricing, platforms and verified facts.
Clue vs Flo: what's the difference?
Both Clue and Flo are free with paid plans. Both run on iOS and Android.