Lena, in four numbers.
- Typical doctor reply
- 15 min
- A real doctor in the same app. Typical, not guaranteed.
- Signals in FertiScore
- 40+
- Turned into one clinical score, and a plan.
- Questionnaires
- 7
- Reviewed by Lena’s medical team, each ending in a report.
- Languages
- 5
- English, French, Arabic, Spanish and Portuguese.
Side by side.
LenaUnderstanding your own health: cycle, symptoms, fertility, perimenopause.
ClueScience-backed period and cycle tracking, to understand your patterns.
LenaDoctor Chat: a real doctor in the same app, typically replying within 15 minutes (Premium).
ClueIts store listing mentions no doctor consultation in the app.
LenaAsk anything about your cycle, symptoms, sleep, food or mood. Lena answers from your own history and gives sources for medical claims.
ClueYour patterns in charts, and 400+ articles.
LenaHealth data hosted in the EU under GDPR, encrypted in transit and at rest. No ad trackers, never sold.
ClueHeadquartered in Berlin, under GDPR.
LenaCycle tracking, an irregular-cycle setting, FertiScore, and the “Is it perimenopause?” questionnaire.
ClueModes for period tracking, trying to conceive, pregnancy and perimenopause.
LenaCycle tracking, check-ins, reports and the library are free. Premium adds unlimited chat with Lena, and Doctor Chat.
ClueFree to download. Clue Plus adds deeper analysis, advanced predictions and personalised insights.
Clue’s side is taken from its own website and store listing, checked in November 2026. Clue and its icon are trademarks of their owner; LenaCare is not affiliated with it.
See it for yourself.
Real recordings of the Lena app, not mock-ups.
Which one is for you?
Pick Lena if
- You want to ask a question and get an answer about your own pattern.
- You want to message a real doctor without leaving the app.
- You want a fertility score and a plan, not only a calendar.
Pick Clue if
- You mostly want to log and read your patterns in charts yourself.
- You want a dedicated pregnancy mode.
- You want Clue Conceive, its mode for predicting fertile days.
Good to know.
Not seeing your question? The help center has the rest.



