Open zentimer.work in Safari
If your default browser is Safari just click the link above
If you have another default browser set (e.g. Chrome) then hold the link above for a few seconds and then click “Copy the link” in the context menu
Open Safari and paste the link as url
Click the “Share” icon in Safari
Click “Add to Home Screen”
Click “Add”
Congratulations! 🥳 Zentimer now is on your home screen
You can drag it to the bottom menu for your convenience