Email me when a balance runs low

Get an email when a checking or savings account’s balance goes under the amount you set, in the account’s own currency: once each time it drops under, and straight away if it is already under when you switch it on. Pick a bank account, not a card: a card’s balance is what you owe. BankSync checks as often as your plan syncs, never asking the bank to refresh. It goes to you, the person who switches it on; change who it emails in its email step.