In your browser, on your phone, or with nothing installed.

All three are free and use the same catalogue. No account is needed and nothing is collected; what you enter stays on your own device.

Open the app

How to install it on a phone

iPhone and iPad

  1. Open this page in Safari.

    If you are in Chrome or another browser, copy the address into Safari. Adding to the home screen works most reliably in Safari.

  2. Tap the “Open the app” button.
  3. Tap the Share icon at the bottom of the screen.

    The arrow pointing up out of a box. On some models it is in the top corner.

  4. Scroll down, tap “Add to Home Screen”, then tap “Add”.

    On iOS 26, make sure the “Open as Web App” switch is on; if it is off the icon is saved as a bookmark rather than an app.

Android

  1. Tap the “Open the app” button.
  2. If Chrome shows an install card, tap “Install”. That is all.

    If no card appears: the ⋮ menu at the top right → “Add to Home screen” → “Install app”.