OneShop
OneShop is a crosslisting and automation app for online resellers, run by Inventory Systems, Inc. It grew out of an earlier Poshmark sharing bot called SuperPosher.
OneShop is a crosslisting and automation app for online resellers, run by Inventory Systems, Inc. It grew out of an earlier Poshmark sharing bot called SuperPosher. Sellers create a listing once and post it to Poshmark, Mercari, Depop and eBay, and OneShop can delist items on other sites after a sale. It also offers bots for relisting, bumping and sharing, description templates, and a combined sales dashboard with monthly goals. OneShop sells one Premium subscription at $45 per month with a 7-day free trial. Third-party reviews describe it as mobile-first and available to sellers in the United States and Canada. Some reviews report reliability issues with sharing, auto-delisting and eBay connections.
Key features
- Crosslist one listing to Poshmark, Mercari, Depop and eBay
- Automatic delisting on other sites after an item sells
- Bots for relisting, bumping and Poshmark sharing
- Smart autofill and description templates
- Combined sales graph, monthly goals and marketplace comparison
FAQ
OneShop's pricing page lists one plan, OneShop Premium, at $45 per month, billed monthly. The plan covers crosslisting, automation bots and the sales dashboard. Some older third-party reviews describe several tiers from $45 to $120 per month, but the current pricing page shows a single Premium plan. Check the pricing page before subscribing, since plans can change.
Yes. The OneShop homepage offers a 7-day free trial through the signup flow. The cancellation policy does not describe trial cancellations separately, so if you do not want to be charged, cancel from the billing dashboard before the trial ends. Deleting the app alone does not stop a subscription from starting or renewing.
Cancel through the billing dashboard on the OneShop website. The cancellation policy says deleting the OneShop app or account is not the same as cancelling, and billing continues until you cancel in the dashboard. Cancellation takes effect at the end of your current billing period. You keep access until then, and partial months are not refunded unless the customer success team makes an exception.
The OneShop homepage names Poshmark, Mercari, Depop and eBay. Its Terms of Service also mention Etsy, Grailed, Facebook Marketplace, Kidizen and others, while noting that OneShop is not affiliated with any of these sites. Third-party reviews say crosslisting works best between Poshmark and Mercari, and that the app is limited to US and Canadian sellers and marketplace versions.
OneShop's contact page lists support@oneshop.com for general help, support-feedback@oneshop.com for feedback, and a phone and text line at (415) 851-6800. You can also message the company on Facebook Messenger at @oneshopcompany. OneShop says support is available 18 hours a day, 7 days a week. There is no public help center linked from the homepage.
Yes. As of September 2026 the OneShop website is live, with a current pricing page, signup, contact details and a cancellation policy. The company behind it is Inventory Systems, Inc. OneShop started as the SuperPosher Poshmark bot before expanding into a crosslisting app. A competitor blog claims feature development has slowed since mid-2022, which OneShop has not publicly addressed.
OneShop says its automation adjusts sharing activity to your closet size, and you can turn each bot off at any time. However, its Terms of Service state it is not endorsed by or affiliated with Poshmark or other marketplaces, and that users are responsible for reviewing each marketplace's own terms. Any automation carries some risk if a marketplace changes its rules.
Reviews and comparison articles mention several recurring issues. Users report that sharing bots stop working, auto-delist fails, and eBay connections drop. Some say crosslisting beyond Poshmark and Mercari is not smooth. Others note it is built mainly as a mobile app, which suits phone listing but not desktop bulk work. Most of these reports come from competitor blogs, so test during the free trial.
Common crosslisting alternatives include Vendoo, List Perfectly, Crosslist, SellerAider, Nifty and PrimeLister. They differ in supported marketplaces, desktop versus mobile focus and price. Sellers who mainly sell on eBay and want bulk editing, listing templates, eBay message management and automations may also look at 3Dsellers. Compare which marketplaces each tool supports in your country before switching.
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