People tracking a cycle get free period logging from a Berlin company under EU privacy law, with Plus at £7.99 a month.
Kenning's take
What it does
Clue is a period and cycle tracker that predicts upcoming periods, ovulation and the fertile window from the user's own logged cycle data. People log their period and over 200 symptoms such as cramps, mood, energy and sleep, and see their patterns in charts, with modes for trying to conceive, pregnancy and perimenopause.
- period and cycle predictions
- ovulation and fertile window predictions
- tracks 200+ symptoms and experiences
- charts of personal patterns
- custom reminders
- registered medical device in the UK per the App Store listing
Who it suits. Suits anyone who menstruates and wants science-based cycle predictions from a company bound by EU privacy law.
Key facts
- Category
- Health, fitness & wellbeing
- Made by
- BioWink GmbH
- Based in
- Germany (Berlin)
- Works on
- iPhone, Android
- In the UK
- Yes
- Free plan
- free period and cycle tracking; Clue Plus adds paid features
Pricing
| Plan | Price | Billed |
|---|---|---|
| Clue Plus (1 month) | £7.99 | month |
| Clue Plus (6 months) | £19.99 | 6 months |
| Clue Plus (12 months) | £23.99 | year |
| Clue Plus (12 months, higher price point) | £39.99 | year |
Ratings
Reviews and write-ups
- CyberInsider 2026-07-17
FAQ
Is Clue free?
Yes, basic period and cycle tracking is free. Clue Plus costs £7.99 a month on the UK App Store, with 6- and 12-month options.
Where is Clue based?
Clue is made by BioWink GmbH in Berlin, Germany, and says data is protected under GDPR.
Does Clue work on Android?
Yes. Clue is on Google Play UK and the App Store.
Facts from the maker's own pages and the sources listed. Checked 2026-10-11.
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