>> I believe you also mentioned one time about upgrading from 2nd Class to 1st Class (last autumn trip reports) quickly through the SBB app. If that was you, could you walk me through the steps on the app?
This post is in response to the above question from the thread
This procedure is for people who already have a second-class ticket or pass, and want to upgrade to first class for a specific sector. I found this a useful thing to do when I was travelling with luggage and second class was crowded.
Important: this procedure does NOT apply to Swiss Travel Pass (Flex) holders. They can buy upgrades and only pay half the difference between 2nd and 1st class, but this has to be purchased from a staffed service desk.
Update (Arno, May 25, 2017): it looks like it does work from the app now if one selects the Half-fare travelcard.
First of all, you have to register online with the SBB Ticket Shop, and provide personal and credit card details.
Once you are registered, you will have a user name and password to log into the SBB Mobile App.
To log in to the app:
-- Tap the parallel lines at the top left of the home screen (Image 1)
-- Tap "Ticket Shop Login"
-- Fill in user name and password
-- Tap "Login"
To buy a class upgrade for a particular sector:
1. Tap on "Standard Timetable" on the home page of the app (Image 1)
2. Enter your starting point, destination, via (if appropriate) and date/time (Image 2)
3. A list of service options will appear (Image 2)
4. Tap on your preferred service (Image 2)
5. Details of your preferred service will appear (Image 3)
6. Tap on the red bar that says "Tickets from CHF..." (Image 3)
7. The default option on the next screen is to buy an individual ticket. This is not what you want in this case: you need to scroll down for other options (Image 4)
8. Before scrolling down, if you are also buying an upgrade for another person travelling with you, you can put their details in by tapping on "Edit travelers" (Image 4)
9. On scrolling down, you will see the option for "Class upgrade (route-specific)": tap on it to choose it (Image 5)
10. Then tap on "Purchase ticket for ..." to conclude the transaction (Image 5).
You will need to show your second class ticket or pass plus the class upgrade on the screen of your device when the conductor comes around to check tickets.
If you have the latest version of the SBB Mobile app, it has a demo mode, where you can practise doing a transaction without actually buying a ticket.
To activate Demo Mode:
-- tap on the three parallel lines at the top left of the home screen
-- tap on "My Settings"
-- tap on "Demo Purchase Mode"