There are close to 100,000 fitness applications available for download, and that number grows nearly every day.

WRAL’s 5 On Your Side investigated a fitness app that has received so many consumer complaints, the Better Business Bureau issued a formal warning.

“According to the BBB files, this business has a pattern of unanswered complaints concerning receiving recurring charges after signing up for a free trial. Consumers indicate that they want contact from the business and a refund. BBB sent a written notice to Lasta Healthy Weight Loss identifying the potential pattern of complaint with a request for a business response. The business did not respond to the BBB’s request.”

Lasta: Healthy Weight Loss markets itself as a wellness assistant, offering tools to help users build healthy habits through fasting, diet tracking and exercise.

However, customers say that after signing up for the app, they are being charged for things they didn’t agree to. 

Joyce Fuller of Hope Mills is one of hundreds of people who have filed complaints with the BBB.

“I thought I was getting a free trial to learn how to eat right, and exercise. The next thing I knew, I got charged 10 bucks, and I tried to cancel it, but I got charged 10 bucks again. I’m beginning to think that there’s nothing to sign up for,” said Fuller.

5 On Your Side’s Ashley Rowe asked Lasta for a comment to these complaints, and they declined to answer.Â