It’s easy like Sunday morning: download the Yuh app (if you haven’t already done so) and follow these few steps to open your Yuh 3a account.
You must:
be at least 18 years old
live in Switzerland
not be a US citizen
have an ID card or passport and proof of address (electricity or mobile phone bill)
If you already have a Yuh account or have followed the steps above, simply go to the Save section in the app, click on the Yuh 3a icon and follow the process from there.