Herelune Privacy Policy
Effective date: 29 September 2026
Herelune is a menstrual-cycle tracking and wellbeing application designed to help users record their cycle, estimate upcoming periods, record symptoms and moods, and receive supportive wellbeing information.
Your privacy is important to us. Herelune has been designed to minimise the amount of personal information that leaves your device.
1. Developer
Herelune is operated by:
Stephen Cooper
United Kingdom
Contact email:
Solarevcoops@outlook.com
2. Information entered into Herelune
Herelune may allow you to enter information including:
Your first name or chosen display name
Last menstrual period start date
Menstrual cycle length
Period duration
Recorded period dates
Symptoms such as bloating, cramps, tiredness or headaches
Mood and wellbeing information
Daily check-ins
App preferences
This information can include sensitive health and reproductive-health information.
3. How your cycle information is stored
In the current version of Herelune, cycle, symptom, mood and preference information is stored within the application's local storage on your device.
Herelune does not currently operate a cloud account system for this information.
We do not receive your menstrual-cycle history, symptom history, mood entries or daily check-in information on our own servers.
4. How your information is used
Information you enter is used by the app to provide features including:
Calculating your current cycle day
Estimating your next period
Displaying your cycle calendar
Providing estimated cycle phases
Recording symptoms and moods
Providing supportive messages
Providing general wellbeing and nutritional suggestions based on selected symptoms
Providing basic personal cycle insights
This processing is carried out to provide the functionality you request.
5. AI and automated services
The current Herelune V1 does not send your health information to an artificial-intelligence provider.
Supportive messages are selected from a pre-written message library contained within the application.
If AI functionality is introduced in a future version, this Privacy Policy will be updated before health information is transmitted to any external AI service.
6. Advertising
Herelune does not currently contain third-party advertising.
We do not sell menstrual, health or wellbeing information to advertisers.
7. Analytics and tracking
The current version of Herelune does not intentionally use third-party advertising analytics, behavioural tracking or marketing SDKs to analyse your menstrual-cycle information.
Herelune does not use your cycle, symptom or mood information to build an advertising profile.
8. Data sharing
Herelune does not intentionally share your recorded menstrual-cycle, symptom or mood information with third parties.
Your information is not sold.
If future features introduce cloud services, account synchronisation, AI processing or other third-party services, this policy and the application's disclosures will be updated accordingly.
9. Google Play purchases
If you purchase Herelune through Google Play, payment processing is handled by Google Play.
Herelune does not receive or store your full debit-card or credit-card details.
Google's handling of purchase and account information is governed by Google's own privacy terms.
10. Data retention
Cycle and wellbeing information stored by Herelune remains within the app's local storage until it is deleted.
Users can delete Herelune information using the application's data deletion controls where available.
Information can also be removed by:
Clearing Herelune's application storage through Android settings; or
Uninstalling Herelune from the device.
Because the current version does not create a Herelune cloud account, there is no separate Herelune online account database to delete.
11. Device security
Herelune relies on Android's application-storage protections to help prevent other applications from directly accessing its private app data.
You should protect your device using appropriate measures such as a PIN, password, fingerprint or other device security.
No electronic storage system can be guaranteed to be completely secure.
12. Menstrual and health information
Menstrual-cycle information is sensitive health information.
Herelune uses the information you enter only to provide the cycle-tracking and wellbeing functionality described in this policy.
Herelune currently does not request access to Android Health Connect menstrual information or other health-provider records.
If Health Connect support is introduced in the future, additional permissions, disclosures and consent will be provided.
13. Health information disclaimer
Herelune provides general menstrual-cycle estimates, wellbeing information and supportive guidance.
Herelune is not a medical device and does not provide medical diagnosis, treatment or personalised medical advice.
Cycle and fertile-window predictions are estimates only.
Herelune should not be relied upon as a method of contraception or pregnancy prevention.
Nutritional and wellbeing suggestions contained within the application are general information and are not a substitute for advice from a doctor, registered dietitian or other qualified healthcare professional.
If you experience severe, persistent, unusual or concerning symptoms, seek advice from an appropriate healthcare professional.
14. Age
Herelune is currently intended for users aged 18 years and over.
The application is not intentionally directed towards children.
15. International users
Herelune may be downloaded in countries outside the United Kingdom.
Because the current application primarily stores cycle information locally on the user's device rather than on Herelune-operated servers, Herelune does not currently transfer that cycle information internationally through its own cloud infrastructure.
16. Changes to this Privacy Policy
We may update this Privacy Policy when Herelune's functionality or data practices change.
For example, an update may be necessary if Herelune introduces:
Cloud backup
User accounts
Live AI functionality
Health Connect
Analytics
Additional third-party services
The effective date at the top of this policy will be updated whenever material changes are made.
17. Contact
For privacy questions, concerns or requests relating to Herelune, contact:
Solarevcoops@outlook.com