sahibinden.com is a product and service selling/buying app that's very similar to Craiglist, OLX or Wallapop, but it's mainly focused in Turkey. You can take a look at all the products and services that are for sale without a user account, but you do need one if you want to sell something.
The content in sahibinden.com is perfectly organized so you can easily find anything you're looking for. Just browse through the different categories and subcategories which you can access through its dropdown menu located on the left.
Inside the info sheet of each product or service, you can find all the relevant details including pictures, price, and comments from the vendor. If you're looking to sell something, you can do the same thing and add as many pictures and relevant information as you want.
sahibinden.com is an excellent alternative for selling or buying products and services in Turkey. Thanks to this app you can access thousands of different products.