@alanstranger1 This is not true.
IBKR pro will give you 0% up to 10'000 CHF and 0.864 % for 100'000 CHF. From 10'001 CHF to 99'999 CHF they apply a "blended" interest, calculated proportionally to the amount of capital you have in the account. For 1 CHF above the 10'000 cut, for example, the interest is 0.096%. Consider you have to add the fees for the Pro account.
OP, most of the high savings account with no or limited restrictions will yield 0.8 % to 1.2%, while for anything above that you'll need to lock in the capital.
Personally I suggest Swissquote invest easy packet: no fees, 1% rate from 1 to 50'000 CHF, up to 25'000 CHF/m withdrawal limit. But you can likely find similar deals in other banks/brokers.