App-based dog-walking service Wag has lost yet another New York pooch — at least the seventh local pup to escape the company’s leash wranglers.

Upper East Side Goldendoodle Simba was hit by a car after giving his walker the slip Tuesday afternoon, according to his owners.

“I lost it when I saw him — there was blood all over him, he looked like he had been homeless,” said Reba Cox, 30.

“He’s still traumatized, he’s not himself. Yesterday my husband went to walk him and he didn’t want to go outside the apartment.”

Wag says its walker dropped Simba’s leash as she “removed her mittens in order to take an emergency phone call regarding her mother in the hospital.”

But Cox doesn’t buy it — she believes the walker didn’t put his harness on properly, because the pet-minder was holding the strap when they met up after Simba was found.

“She had the leash and harness with her, it wasn’t on. It was total negligence on her part,” she said.

Either way, Cox is furious because the company failed to contact her immediately when Simba ran off. She only found out after her doorman saw him bolt down the street.

Wag says it was just following its protocol to first try to rescue the dog.

Simba was taken to the doggie emergency room with bruises and lacerations and has since racked up more than $1,000 in vet’s bills, which Wag has offered to pay.

“I don’t care how good the customer service is after if you’re not giving me good customer service when my dog is loose in New York!” said Cox.

Just weeks earlier, Upper East Side Chihuahua Norman escaped his harness while under a Wag walker’s care — and hasn’t been seen since.

East Flatbush cane corso Nash, Midtown Chihuahua-dachshund Freddie, Brooklyn jindo mix Teddy and Long Island’s Buddy have all run off from Wag in recent years and were later found safe.

But Chihuahua-pug mix Duckie was fatally hit by a car after slipping away in Prospect Park in 2015.

Wag said it “continually works to improve safety measures so that incidents such as these do not occur.”