A teenage boy trying to sell his cellphone through the popular LetGo app was robbed at gunpoint — and the same app gave Alpharetta police the clues they needed to make arrests.

Two men, Zion Cowart and Emmanuel Boakaye, have been arrested, according to Channel 2 Action News.

The victim advertised his phone on the app and agreed to meet Cowart and Boakaye at North Point Mall in August for the sale, according to Channel 2.

Inside the mall, one of the two suspects told the boy that he did not have all the money to pay for the phone, Alpharetta police spokesman Sgt. Howard Miller said.

One suspect invited the boy to his car, where he claimed to have the rest of the money. It’s unclear which of the suspects invited the boy to the parking lot.

RELATED: Cops: Suspects use LetGo app to rob at least 2 victims in Gwinnett

Once in the parking lot, the suspects robbed the boy at gunpoint, Miller said.

The app provided clues during the investigation that helped police identify the suspects, Miller told Channel 2. He did not specify what that information was.

Cowart and Boakaye are facing felony robbery charges. They are both being held without bond in the Fulton County jail, according to Channel 2.

In other news:

Investigators say the man was high on cocaine when he broke into the state capitol.