An 18-year-old man and a 34-year-old woman who allegedly abetted a stickup at a Brooklyn cellphone store were under arrest last night — after cops tracked them down with a GPS feature on one of the stolen phones.

Two men, one flashing a silver revolver, burst into Ocean Wireless, in Brighton Beach, at about 5 p.m. Friday and took the owner’s wallet and 15 phones, cops said.

But store employee Sofiya Arutunian, 25, immediately began tracking them using the GPS function.

“I feel a little like Spider-Man,” said Arutunian after store owner Stan Michaels accompanied cops to the Kings Plaza Mall — where the signal stopped.

In a car they found the gun, phones — and Kwesi Vadale and Iesha Wilson.

“The look on her face was priceless,” Michaels said of Wilson, who allegedly acted as a scout for the robbers by claiming to be looking for a phone for her boyfriend.

Vadale’s alleged role wasn’t immediately clear.

The actual stickup men were still at large last night.