I need to get one, without the subscription plan, because I don't need it.

I can't find the prices for calling within suisse and SMS or internet rates.

Anyone uses prepaid here?

Sorry your Google is broken. Happens to me sometimes too.

https://www.salt.ch/en/prepay/

National Tariffs
Calls: 0.49/call (60 min max.)
SMS: 0.12/SMS
MS: 0.49/MMS

You can get data packages too:

Data Packages in Switzerland

With the Salt PrePay offer, you can choose the volume that suits you the best, valid for 30 days by accessing to https://costcontrol.salt.ch/status via the mobile network (does not work with Wi-Fi).

100 MB / CHF 3.00
500 MB / CHF 9.00
1 GB / CHF 15.00

Data packages are valid in Switzerland only. They are valid until the indicated date during the purchase process. Unused data volume expires at the specified time.

Thank you. I can't see the second link, it doesn't work from wifi connection.

Anyway, do you know if I also get charged if someone calls me from salt or other number? For incoming calls I mean

Get charged for incoming calls..???
No, as long as you are not roaming.

Being charged for incoming calls doesn't happen in Europe unless roaming.

It's another peculiar USA oddity.