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Adding the app to your home screen

There is no need to install anything from an app store. Add the portal to your home screen once and then open it like any other app.

My phone

Log in first

On your phone, open the portal website isothermtest.grenadecastle.com and log in as usual. The guide Logging in to the portal shows how. Then follow the steps below.

Use the Safari browser. These steps apply only to Safari — in Chrome and other browsers on iPhone they look different. If the portal is open elsewhere, copy the address and open it in Safari.

  1. Tap the three dots

    In Safari, tap the three dots (···) next to the address in the bottom right corner.

    Use the Safari browser. These steps apply only to Safari — in Chrome and other browsers on iPhone they look different. If the portal is open elsewhere, copy the address and open it in Safari.

  2. Choose “Share”

    Tap “Share” in the menu.

  3. Tap “Add to Home Screen”

    At the bottom of the share sheet there is a row of round buttons — tap “Add to Home Screen”. If you cannot see it, tap “Show More”.

  4. Confirm

    Leave “Open as Web App” switched on and tap the blue “Add” in the top right corner.

  5. Done

    The Isotherm icon is on your home screen. It opens the portal like an app — without the address bar.

  1. Open the Chrome menu

    In Chrome, tap the three dots (⋮) in the top right corner.

  2. Choose “Add to Home screen”

    Tap “Add to Home screen” in the menu. In some versions the item is called “Install app”.

  3. Confirm

    Tap “Add” (or “Install”).

  4. Done

    The Isotherm icon is on your home screen. If you cannot see it, find it in the app list and drag it to the home screen.

Not working?

I cannot see “Add to Home Screen” on my iPhone

Open the portal in the Safari app. In the share sheet tap “Show More” in the row of round buttons — the item is usually among the other actions.

I have to log in again after opening the icon

The home screen app has its own login, separate from the browser. Log in once and enter the security code from the e-mail — next time you will not have to.

How do I remove the icon?

Press and hold the icon and choose remove. Your data in the portal stays unchanged.

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