Kids consignment has gone digital

Consignment shops - whether permanent or pop-up - are hugely popular as a way to save and make money on kids items. So, it's no surprise these stores are growing in popularity online and through apps.

"For me, it's a hobby but it's turned into supplemental cash," explained Wake Forest mom of two Jenn Viklund.

"We went on our summer vacation using all money I cashed out selling the kids clothes," Viklund said.

Viklund has been using the Kidizen app for about a year. She set up her shop, Viking Treasures, on it shortly after the app was released, so, Viklund has helped developers improve it while making and saving money along the way.

"I definitely like to save money," Viklund said. "I like to dress my kids cute, a lot of style and I'm really into brands you would find at an upscale dept store like Nordstrom or brands like Matilda Jane.

I've been able to get my kids all of that stuff on Kidizen at a much lower price than retail," she said.

Kidizen is free to use but takes an 18 percent fee for every item sold. The app is also for listing many other items including toys, bedding, and maternity clothes.

Kidizen is rolling out a concierge service where a skilled user in the market will pick up clothing to list and sell it for a user. This service will charge a higher fee, but, sellers don't have to do any work.

Sellers can be paid through Paypal or a bank account. Credit can also be used as Kid Bucks to shop on the app.