Privacy

Short version: the dates you type stay on your device.

Calculations

Every calculator runs in your web browser. The dates, times and cities you enter are not sent to us.

Saved dates and settings

“My dates” and your Pro status are stored in your browser’s local storage on your device. We can’t see them. Clearing your browser data deletes them.

Advertising

Datewise shows ads from Google AdSense. Google and its partners may use cookies to show ads and measure them, and may personalise ads based on your visits to this and other websites. You can turn off personalised ads in Google’s Ad Settings, and read how Google uses data from sites that use its services. Visitors in the UK, EU and some other places are asked for consent first.

Datewise Pro

Payments are handled by Stripe; we never see your card details. To turn Pro on, our licence server stores your Stripe purchase reference, the email address you paid with and an anonymous id for each device (up to 3). This is used only to check your purchase.

Analytics

We use Cloudflare Web Analytics, which counts visits without cookies and without tracking you across sites.

Contact

Questions about privacy: hello@datewise-tools.com.

Last updated 9 October 2026.