In general: If the court orders you to do something, like let's say you get court-ordered rehab, you have to pay for it. So since they ordered surveillance app, they had to pay for it.
Since husband's in jail, why have app?: Because nobody's told her she is allowed to remove it since her husband's been locked up. So she's trying to be as cautious as possible since something dumb threw him back in.
In general: If the court orders you to do something, like let's say you get court-ordered rehab, you have to pay for it. So since they ordered surveillance app, they had to pay for it.
Since husband's in jail, why have app?: Because nobody's told her she is allowed to remove it since her husband's been locked up. So she's trying to be as cautious as possible since something dumb threw him back in.