Olx is a very good app that provides an interface to both buyers and sellers. One can easily list the products they want to sell and buyers can easily contact sellers via the ad.
I myself have been using this app for around 2 years and got good results.
I have sold mobiles, bikes and many other things at a good price. Olx has a huge user base which is the most liking thing. Huge user base in turn provide good response rate.
I post the ad and provide a good description.
Buyer contact me with there offers and questions, then if buyer agrees then we meet at a place and exchange product and money.
I have tested other apps in this field But do not got good results.
It is very reliable and good. It is free to post ads to a certain limit which is also good.
Almost anything can be sold through this app.
Thanks!