Need help with find an app that allows customers to sell their products to me

[needhelp6]

Is there an app on shopify that allows me to give money to customers that come on to my website and sell me their products? (For example: There are some websites that buy broken iPhones off people and you can go to their website and sell a phone to them and these guys will send them a check, cash, or whatever they choose that seems fit and the customer ships their phone to them like this website for example https://www.ecoatm.com they use shopify as well). If anyone knows any App that can do this or if this is even capable on shopify let me know! Thanks

[Pokégirl_Cards]

Hello - I wonder if you had much luck with this? Also looking for a similar functionality. And keen not to go down the fully bespoke build route.