I got an email from Ibotta today saying that because I haven’t redeemed any cashback for 180 days, they will start charging a $3.99 monthly inactive fee until the cashback balance in my account is used up. If you haven’t used your account in a long time, it’s worth checking and cashing out your rewards. Note that this fee only applies to the cashback balance in your account; it will not be charged back to the credit card linked to your account...

Ibotta mainly offers cashback on grocery and supermarket purchases. If the offers fit your spending, the savings can add up over time, and the cashback can be pretty solid.