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Privacy in Wiesz Kiedy: what data, where it stays and what about ads

7 November 2026

No account, no tracking, favourites and places only on your phone. How Wiesz Kiedy treats your data, how ads on the website work and what will change when ads come to the app.

A public transport app knows where you live, where you work and when you leave home. That is why we built Wiesz Kiedy from the start so this information stays with you.

What stays on your phone

The app uses no analytics or tracking tools and sells no data.

What reaches our server

The app downloads the timetable and live data for your city from the Wiesz Kiedy server. Like any website, the server then sees your IP address and which file you download. The server log contains no coordinates or search terms and is deleted after 14 days.

If the app closes because of an error, it asks whether to send a description of it. The report contains the app and Android version, phone model, city and where in the code the error happened, but no location, places or routes. Change your consent in Settings → Data and offline.

Ads on the website

wieszkiedy.pl shows Google AdSense ads; they keep Wiesz Kiedy free. Advertising cookies and personalised ads work only with your consent, which a message asks for on your first visit. Change or withdraw it at any time with Privacy settings in the site footer. The browser planner (/en/app) shows no ads.

Ads in the app

Ads will soon come to the app as well, because running servers for 32 cities costs money. The rules are simple:

You still will not need an account, and your location will still stay on your phone.

Your rights

You have the right to know what data we process and to ask for it to be deleted. Since there are no accounts, you can delete almost everything about you yourself by uninstalling the app or clearing its data. For anything else, write to support@wieszkiedy.pl. The full rules are in the privacy policy.

See when it comes

Planner and departures in 32 cities, most with live vehicles. Free, no account.

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