If you have never tried a cross sharing program, you may like to try Vendoo. They offer five free posts to see how you like their platform.
Here is my referral link for Vendoo:
I have an Etsy store which I do not plan to cross-list most of my items, however, I have a Poshmark store and decided it would be a good idea to add Ebay to future items posted on Poshmark. I tried adding Ebay in the past but the program I was using did not have the capacity to take down the item sold from the other apps. Now, Vendoo offers this feature. I'm thrilled. I started using Vendoo for the items I sell on Poshmark and Ebay in the middle of December. In the past, I tried selling duplicate items on several platforms but never gave it long enough to work. This time, I have committed to giving this app a fair chance for success. In the last few days, I have sold two items on two different platforms and without any problems, Vendoo removed the items from the other platforms where I had the items for sale within minutes. It is working seamlessly.
If you would like to sell the same items on multiple platforms, please give Vendoo a try. I believe you will like it!
**** Update: February 20, 2025
I love Vendoo! I have updated the app to a year's subscription. There are several reasons why I love it.
The first reason is that when I add inventory in Vendoo, I can decide where I want to post it or I can leave it in Drafts. They keep your inventory forever so if you purchase a subscription for listing 250 items and you have over 1,000 in your inventory, those items remain. You are only charged for the newly added items that month. As I mentioned before, I rarely crosslist my Etsy items. There are several reasons for that which I won't go into now but occasionally I will take an item off of Etsy and move it to eBay. It gives it new life and I can reword the original listing.
So, the second reason I love Vendoo is that I have removed about a hundred listings off of Etsy and relisted them on eBay with new description and sometimes, a new price. These items were easily uploaded to my inventory and each one counts as a new item. With Vendoo unlimited, I can upload my whole 2500 items from Etsy to eBay if I wanted to do so, which I do not. I love the ability to add inventory as needed. If you do not have a big shop then you might not want the unlimited subscription but you can still save money with the yearly subscription in various numbers added to inventory.
The third reason I love the unlimited Vendoo subscription is that I have a very large inventory. My original thought was that I would list about three or four items a day but then realized I would never reach the end of my inventory in my life time so I added the eBay store and began listing about 8 to 10 items a day. I crosslist these items to Poshmark and Mercari. I sell regularly on Poshmark and eBay but have yet to sell on Mercari. So, I decided to remove all of my listings from Mercari because in three months, I did not sell one item on Mercari. I did receive likes. Several years ago I had listings on Mercari and sold several here and there but for the last few months, all I hear is crickets. I'm not sure what happened but it isn't worth my time to add listings for no results. Even though it is crosslisting, there are still things that each individual platform requires you to complete with information so for now I am not using Mercari. I'm busy with Etsy, eBay, and Poshmark so I'm super happy and again, love Vendoo!