Tatiana Gschwend
Your data

Privacy notice

This notice explains which personal data is processed when you visit this website, subscribe to the newsletter or use the Your Moon app, why, and what rights you have. Last updated: 11 November 2026.

Who is responsible

The controller of your personal data is Tatiana Gschwend, Lindenstiig 6, 8226 Schleitheim, Switzerland. For any question about your data, or to exercise your rights, write to gschwend@yandex.ru. The website, the app and their servers are developed and operated on her behalf by Swissvoip SA, Via Vira 2, 6805 Mezzovico-Vira, Switzerland, which acts as processor: it handles the data only on her instructions and never for purposes of its own.

When you visit this website

You can read the website without telling us who you are. It uses no advertising, no analytics and no tracking cookies, and it loads no content from other companies: fonts and images come from our own server.

  • Server logs: like every web server, ours records the IP address, the date and time, the page requested and the type of browser. We use these logs only to keep the service secure and to fix errors, and they are deleted after 14 days at the latest.
  • Prices in your currency: the page reads the time zone set on your device to decide whether to show prices in Swiss francs, euros or roubles. This happens in your browser; the time zone is not stored.
  • Purchases: when you buy a programme you leave this website for the page of the payment provider. We never see or store your card details.

Newsletter

If you subscribe, we store your email address, the language of the page, the page from which you subscribed and the date of your consent. We use them only to send you the newsletter. You can unsubscribe at any time by writing to the address above; your address is then no longer used.

The Your Moon app: your account

To use the app you create an account. For it we process:

  • your email address and your password, which is stored only in a protected form that cannot be read;
  • the name you want to be called by and your year of birth, if you choose to give them;
  • the language of the app, and the app store from which you installed it together with its country;
  • the settings of your reminders. The reminders themselves are created on your phone: we do not send push notifications through external services.

The Your Moon app: data about your health

The app exists to let you record information about your body and see the patterns that emerge from it. This is data concerning health, which the law protects in a special way. We store it only after you have given your explicit consent in the app, and you can withdraw that consent at any time from your profile: from that moment the app stores no further health data. Depending on what you choose to record, this data includes:

  • the path you follow (cycle, wish to conceive, perimenopause or menopause) and the answers you give when you start;
  • the days of your period and the flow;
  • symptoms and their intensity, and hot flashes with their time, duration and intensity;
  • your mood of the day and your daily check-in on sleep, stress, nutrition, movement and water;
  • fertility signs: cervical mucus, ovulation and pregnancy test results, intercourse, basal temperature;
  • the notes you write.
  • From this data the app calculates summaries and estimates, such as the expected date of your next period. They are patterns drawn from your own entries, not a diagnosis, and no decision about you is taken automatically.

What we do with your data, and on what basis

We use your data only for the purposes described here.

  • To provide the app and your account: this is necessary to perform the service you asked for.
  • To store and show you your health data, and to send you the newsletter: on the basis of your consent, which you can withdraw at any time.
  • To keep the service secure and working: on the basis of our legitimate interest in protecting the service and its users.

What we never do

  • We do not sell or rent your data.
  • We do not use it for advertising and we do not share it with advertisers.
  • We do not use it to train artificial intelligence models.
  • We do not show your entries to other users. Where the app shows how other women feel today, it shows only anonymous totals, and only when enough women have taken part for no one to be recognisable.

Who receives your data

Your data is accessible only to those who need it to run the service:

  • Swissvoip SA, which operates the platform as processor;
  • the hosting provider of the servers, bound by contract to the same obligations.
  • Apple and Google distribute the app through their stores and process the data of your store account under their own privacy policies, as independent controllers.
  • If you write to us by email, your message is handled by our email provider, whose servers are located in Russia. Please do not include health information in emails.
  • We disclose data to authorities only when the law obliges us to.

Where your data is kept

Your account and health data is stored on servers located in Switzerland or in the European Union. We do not transfer it to other countries.

How long we keep it

  • Account and health data: until you delete your account. Deleting the account erases all your data immediately and permanently.
  • Newsletter data: until you unsubscribe.
  • Server logs: 14 days at the latest.

How we protect it

All connections between your device and our servers are encrypted. Passwords are stored only in a protected form. Each user can reach only her own data, and the database cannot be reached from the internet. On your phone you can additionally lock the app with your PIN, fingerprint or face.

Your rights

You can at any time:

  • obtain a copy of your data: in the app, from your profile, with "Export my data";
  • delete your account and all your data: in the app, from your profile;
  • withdraw your consent to the processing of health data, in the app, or to the newsletter, by writing to us;
  • ask us to correct inaccurate data, to restrict the processing or to object to it, and ask any question about how your data is handled, by writing to the address above. We answer within 30 days.
  • If you believe your data is not handled correctly, you can also contact the Swiss Federal Data Protection and Information Commissioner (edoeb.admin.ch) or, if you live in the European Union, the data protection authority of your country.

Age

The website and the app are intended for women and girls aged 13 and over. They are not directed at children under 13, and we do not knowingly collect their data.

Not a medical service

The website and the app offer information and tools for self-observation. They do not replace a doctor: for any doubt about your health, please see one.

Changes to this notice

If we change the way we handle your data we will update this page and the date at the top. For important changes, users of the app are informed in the app.

Letters from Tatiana

Practices, recipes and news about the programmes. No spam.