Translation. Only the German version is legally binding. Deutsch

Privacy policy

As of 21 October 2026

We take your privacy seriously and only process the data Wyter really needs. This policy is based on the Swiss Federal Act on Data Protection (FADP).

Responsible

Jan Stoffel
Sihlquai 16
8134 Adliswil
Email: hallo@wyter.ch

What data we process

Waitlist: your email address, whether you want to buy or sell, your language. We only use it to tell you about the launch of Wyter. We never write to you without your confirmation by email.

Account in the app: email address for signing in and, optionally, name, postcode and town. Others only see your first name with the initial of your last name and your town.

Listings and questions: texts, photos, prices and location of your listings as well as questions and answers about them are public, also for search engines.

Limited listing test: only the owner and explicitly approved, signed-in test accounts can see test listings, photos and questions. They are not publicly indexed and cannot be bought. We store test permissions with the account ID, timestamps and revocation. The test designation remains after launch.

Purchases: only the seller sees the delivery address, and only until shipping. We then delete it, at the latest 14 days after delivery. Only buyer and seller see their messages. Ratings are public.

Connecting an AI: if you connect ChatGPT, Claude or another AI to your account, it may only create, edit and publish listings and read orders without addresses. You can disconnect it at any time in the app.

Connecting programs: Other programs receive only the listing data or order summaries you explicitly authorise through the Wyter API, without addresses, bank details or handover codes. We store the program name, callback address, permissions, authorisation and usage timestamps and only hashes of access tokens. A necessary cookie protected against JavaScript access binds the authorisation flow to the same browser for up to 15 minutes. You can revoke access in your web profile. The connected program’s privacy information applies to its further processing.

Technical data: when you visit the website, the server briefly processes your IP address to curb abuse (for example too many sign-in attempts). We don’t store it permanently.

Recommendations: The Wyter feed considers your favourites, listing age, reviews from completed sales and variety. Your device keeps at most 100 recently viewed listing IDs and timestamps, separately for each account. Entries older than 48 hours are cleared on next use. IDs are sent to our server for recommendations but are not stored as a permanent viewing history. A feed sequence remains in memory for at most 30 minutes. No sharing with advertising services and no AI analysis.

Test phase: the local demo stays on your device. A real sign-in or saving drafts to the server transmits the relevant account data, texts and photos. Real payments and postal labels are not connected yet.

Google sign-in: displaying the Google button connects your browser to Google, transmitting your IP address and technical browser data. If you choose it, Google processes sign-in. Wyter receives your verified email address, name and a Google account identifier. We store the link to your Wyter account, never your Google password. Google’s privacy information also applies.

Search and account protection: search terms and your chosen postcode are sent to our server for searching. Sessions and security events are processed to manage and protect accounts. The app does not use GPS. We count product words from unsuccessful searches without linking them to an account, location or price to improve search. Voluntary support reports contain the information you send.

Translations: when a manually entered or Ricardo-imported listing is created or its title or description actually changes, we send those texts once to Infomaniak’s AI interface to prepare all five language versions. Views and search read saved versions; questions and answers remain in their original language. No identity documents, sign-in codes or private payment data. Your own AI supplies the complete language package; Wyter does not call its own AI for those listings.

No advertising tracking

We use no advertising or analytics services and no tracking cookies, and we don’t sell any data. The app stores your sign-in and local settings on your device.

Web marketplace: Essential cookies protected from JavaScript access keep test access open for up to 24 hours and account sign-in for up to 180 days; the sign-in form uses a 10-minute cookie. Language and up to 100 recently viewed listing IDs are stored in the browser. Signing out revokes that account session. Listings, favourites, profile, orders and messages use the same account data as the app.

We count page views ourselves: time, page, the website you came from and whether it was a search engine robot. Without IP address or cookies, deleted after 180 days.

Sources of our promotional links: A fixed channel, video or partner code can travel through links on our website to the first waiting-list registration. We store it with that entry to count new and confirmed registrations by source; existing entries are not reassigned. The association is deleted on unsubscribe. Daily page counts per source are deleted after 180 days. No additional visitor cookies, stored IP addresses, advertising pixels or disclosure of email addresses to social networks. A shared link identifies its source, not the visitor.

Security

We store email addresses, phone numbers and delivery addresses encrypted. The connection to the website and the app is encrypted (HTTPS).

Where the data is and who receives it

• Server and email: Infomaniak Network SA, Geneva, in Switzerland.
• Later for payments: a Swiss payment provider. This policy will be updated beforehand.

Beyond these processes, we only transfer data at your request, for the described features or to meet legal obligations.

How long we keep data

Waitlist: until you unsubscribe. Unconfirmed sign-ups are deleted after 30 days. Account: until you delete it. We keep details of completed purchases as long as the law requires (accounting up to 10 years). Automatic server backups are normally retained for up to 14 days; if backups fail, the last verified copy is retained longer. Additional encrypted manual backups with restricted access may remain longer. Any restore must account for deletion requests already processed.

Your rights

Request deletion of your Wyter account and personal data, even without installing the app.

You can ask for information about your data, have incorrect data corrected and have data deleted at any time. Write to us at hallo@wyter.ch. You can unsubscribe from the waitlist via the link in every email. If you’re not satisfied with our answer, you can contact the Federal Data Protection and Information Commissioner (FDPIC).

Changes

If anything important changes, for example when payments start, we will update this policy. The version on this page applies.