Sorry didn’t see this.. you can set the daily limit, I think down to 0 and up to 200

It’s a 2/3 signatures transaction. You are holding two keys (in the Bitkey and the Phone App and Bitkey holds the third key.

Any two out of three keys can sign a transaction.

Ie. For the daily thing to work, it needs Bitkey’s servers to cooperate as you’re just using your phone and bit key’s key for signing off the transaction. Hth