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. At first, I removed my listings from Mercari but then I readded them because it doesn't cost anything to list and I decided to see if I ever sell on Mercari. Time will tell. 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. In any event, I'm busy with Etsy, eBay, and Poshmark so I'm super happy and again, love Vendoo!