My bank, (EVO, a Spanish bank) does something similar-ish. Once a month they move any balance in my current account above 3,000 EUR into a savings account. Yes

My bank, (EVO, a Spanish bank) does something similar-ish. Once a month they move any balance in my current account above 3,000 EUR into a savings account. Yes there is interest, and yes it is minimal. I much prefer this approach than having a separate company getting involved.