Selling on multiple marketplaces is not an easy task.
As a seller, your time is better spent growing your business, not juggling platforms and copy-pasting listings.
That’s where crosslisting apps come in tools designed to simplify your workflow, prevent inventory mishaps, and boost your sales.
The thing is that there aren’t a lot of affordable options out there.
In this guide we’ll help you decide which crosslisting apps are worth your time (and money), so you can pick the best for you:
SellerAider
Overview
SellerAider has positioned itself as the go-to tool for marketplace businesses. It’s an all-in-one solution that simplifies crosslisting and streamlines the management of your inventory.
With its user-friendly interface, SellerAider enables seamless crosslisting from one platform to another. For example, if you already have items listed on Poshmark, you can easily transfer them either individually or in bulk to other platforms.
This saves you hours of tedious manual work.
This tool doesn’t just save time; it amplifies your brand’s reach and scales your business with minimal effort.
By automating relisting and delisting, SellerAider prevents overselling by removing items from other platforms once they’re sold.
Got more inventory? You can relist previously sold items on certain platforms without paying extra fees.
Upcoming features like SEO optimization tools and enhanced inventory management promise even more benefits. The SEO tools aim to boost your listings’ visibility across search results.
Pricing
SellerAider is one of the few crosslisting apps that allow you to use the platform free to see if crosslisting is for you.
- Free trial: 14 days (NO CREDIT CARD required)
- Standard Plan: $9.99 for the first month, $12/month after
- Pro Plan: $19.99 for the first month, $29.99/month after (Unlimited listings)
Why We Recommend SellerAider
- Affordable plans with powerful automation tools included
- Free automation for Poshmark, Vinted and Depop
- Easy to use with a Chrome extension
- Supports popular marketplaces like Etsy, Poshmark, Depop, Vinted, and more
- Full support for UK sellers: a unique feature in the crosslisting app space
SellerAider is a must-try for anyone serious about growing their marketplace business efficiently.
Try the crosslisting app for free HERE.
Drawbacks
- Recent entrant to the crosslisting space
- Available on web but the mobile app is new and has some issues to fix.
Vendoo
Overview
Vendoo tackles the chaos of managing multiple marketplaces with an efficient system that centralizes listings and inventory.
Designed to support platforms like Poshmark, eBay, Depop, Etsy, and Mercari, Vendoo offers a wide range of tools, including analytics and inventory management.
Its standout feature is the ability to delist items automatically after they’ve sold, ensuring that your inventory stays accurate across platforms. Vendoo’s user-friendly dashboard puts all your listings in one place, giving you better control over your business.
However, its pricing structure can be a double-edged sword. While Vendoo’s tiered plans allow flexibility, smaller sellers may find the lower-tier plans restrictive, and larger sellers might face high costs due to listing limits. Additionally, Vendoo’s free plan only supports five listings per month, which might not be enough for thorough testing of its features.
Pricing
- Plans range from $9.99/month (25 items per month) to $149.99/month (4,000 items)
- For UK sellers they charge £17/month for 125 items to £50/month for max 600 items
- No full-featured free trial; the free plan supports only 5 listings
Why Vendoo Stands Out
- Flexible pricing plans for different business sizes
- Great for sellers with medium to large inventories
Drawbacks
- Limited functionality for non-US sellers (they recently released their UK version but it is early to evaluate)
- Free plan is too restrictive for proper evaluation
Vendoo could be a good option for sellers who are managing substantial inventory and looking to optimize their workflow.
It’s undoubtedly a great app.
However, smaller sellers or non US-based businesses may find more value elsewhere
OneShop
OneShop focuses on simplifying reselling between Poshmark and Mercari. The app allows sellers to upload images, draft listings, and cross-post.
Like SellerAider, OneShop offers integrated automation for Poshmark and Mercari, including sharing and relisting features.
However, the app’s current limitations are hard to ignore. OneShop only supports two marketplaces (Poshmark and Mercari), making it less versatile compared to competitors.
Additionally, the app’s high subscription cost $45/month or $13/week might not align with its current feature set.
Pricing
- Premium Plan: $45/month or $13/week
- Free trial: 14 days
Why OneShop Is Worth Considering
- Streamlined management for Poshmark and Mercari sellers
- Sales analytics to help optimize business strategies
- 14-day free trial to explore features
Drawbacks
- Limited to Poshmark and Mercari—no support for other platforms
- High cost relative to the number of supported marketplaces
- Mobile-only app; not ideal for sellers who prefer desktop workflows
- Currently unavailable outside the US and Canada
While OneShop shows promise, it’s best suited for high-volume sellers operating exclusively on Poshmark and Mercari. For broader platform support or more competitive pricing, other apps may be a better fit.
Final Thoughts
Choosing the right crosslisting app depends on your business size, budget, and the platforms you use. SellerAider offers the best value for most sellers, thanks to its affordable pricing, wide marketplace support, and robust automation features. Vendoo caters to larger operations with flexible plans and detailed analytics, while OneShop may appeal to Poshmark/Mercari sellers willing to invest in a focused solution.
Whichever app you choose, the right crosslisting tool can save time, prevent inventory errors, and help grow your business efficiently in 2025.
NOTICE: SellerAider is NOT affiliated with the product(s) discussed on this page and all trademarks belong to the parties discussed. We provide no guarantees of completeness on the information presented on this page, as it may change overtime. If there are any errors/corrections/omissions in the content you can send over a request to have the content updated.