NEW YORK (CBSNewYork) –– Parents in the Tri-State and around the world can relate: Trying to reach your teen by phone, only to get ignored.

One frustrated mom decided to do something about it.

As CBS 2’s Alice Gainer reports, Sharon Standifird, was livid the day she called and texted her teenagers and they didn’t respond.

Once she knew they were safe but ignoring her calls, she got an idea, Gainer reported.

“We need to develop an app that just shuts their phone completely down and they can’t even use it,” Standifird said. “And I started — literally just started researching how to develop an app.”

So after months of design and working with developers, “Ignore No more” was born.

With one tap, a list of only parent-selected contacts come up. The child can call, get the password and unlock the phone.

“Bradley needs to call me because I’m the person that has the unlock password,” Standifird said.

“It takes away texting, it takes away the gaming, it takes away calling their friends. The child will always be able to call 911,” said Standifird.

“So much for my daughter saying she didn’t get my text,” a woman named Deborah from Hoboken, N.J. told CBSNewYork.com. She added she loves the idea and is going to download the app.

CBSNewYork Facebook fan Teresa said she “loves it.” Antonio commented on Facebook that he would use the app, “especially since I’m the one paying the phone bills.”

So far, it seems the app has been a success. Standifird says her son responds to her texts and calls more quickly than he used to.

Her son Bradley, however, likes the idea, but not for himself. “Um, well I thought it was a good idea, but for other people, not me.”

“Ignore No More” is available only for Android phones on Google Play.

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