CHARLOTTE, NC-- "I wanna know who he's talking to, who he's calling, who's calling him, who's texting him, yeah I try to find all that out," says Holly Bostic. She waits until her husband is sleeping before she begins snooping. "Now a days you just gotta know it's too dangerous out here," said Bostic.

According to a recent retrevo gadgetology study, she's not alone. They found that 41 percent of women and 32 percent of men admit to spying on a spouse's phone and nearly half for women under 25 admit to spying on their significant others.

With technology these days the smarter the phone, the easier it is to be spied on with email, facebook, text messaging and pictures all in one place. That technology has local private investigators cashing in!  "We get a lot of clients that just you know come in and say I just got to know who this person is," said Keith Hollen, who is part owner of Eagle Eye Detective Agency. He says 75% of his business is from clients who found something incriminating on their partner's phone.  "A lot of them are coming in picking up on maybe a text message or an email or a phone number that they're curious about," said Hollen.

"If I'm gonna be with somebody I'm gonna need to trust them," said Jill Jobe. She says snooping is unacceptable. That's why she keeps her phone locked at all times. Chad Mcmullen agrees, he says all it takes is trust, "I kind of believe in privacy like I have a girlfriend and I trust her with all my heart, I don't spy or anything I feel sorry for people that have to."

As for parents, roughly 4 in 10 admit to snooping through a child's phone.