12 Best Apps for Resellers to Boost Profits in 2025

Running a successful reselling business means juggling sourcing, listing, inventory management, and shipping. The right software can transform these daily tasks from time-consuming chores into streamlined, profitable workflows. Whether you're a thrift store treasure hunter, an Amazon FBA expert, or a multi-platform clothing seller, there's an app designed to solve your biggest challenges. This guide cuts through the noise to bring you the 12 best apps for resellers, breaking down exactly who each tool is for, its key features, and its practical limitations.

We'll explore everything from AI-powered identification tools for antique flippers to robust cross-listing platforms that save hours of manual work. Each entry includes screenshots and direct links to help you find the perfect additions to your digital toolkit. While apps streamline your digital operations, don't overlook foundational strategies. Explore these valuable small business inventory management tips to build a solid base for your growing business.

This list is designed to be a comprehensive resource, giving you a clear, comparative overview to make an informed decision. By matching the right tool to your specific reselling niche-from hunting estate sales to scaling an online storefront-you can spend less time on administration and more time on what matters: finding great products and making sales. Let's dive in and find the software that will unlock your full potential.

1. Curio

Best for Antique & Vintage Identification

Curio stands out as an essential tool for resellers specializing in antiques, collectibles, and vintage goods. This highly focused app uses powerful AI to turn a simple photo into a comprehensive analysis, making it one of the best apps for resellers who need to identify and value unique items on the fly. Simply snap a picture of a vase, lamp, or piece of furniture, and Curio provides an item title, origin, time period, and historical context.

Unlike generic image search tools, Curio is trained specifically on antiques, resulting in more accurate identifications. Its most powerful feature for resellers is the integration of visual matches from online marketplaces, allowing you to see what similar items are currently listed for or have sold for. This provides immediate, real-world pricing context that is crucial for sourcing profitable inventory. The app also includes a collection feature to catalog your finds, perfect for managing inventory or for insurance documentation.

With a user base of over 100,000 and stellar reviews, Curio has proven its value. Resellers praise it as a "game changer" for thrift store and estate sale sourcing, often noting that a single profitable find pays for the subscription cost many times over.

Key Features & Considerations

• Pricing: Freemium model with a limited number of free scans. Paid subscriptions (weekly or annual options) are required for unlimited use.
• Pros:
  • Instant, AI-powered identification with detailed historical context.
  • Integrated links to comparable marketplace listings for realistic pricing.
  • Built-in collection tools for inventory and insurance management.
• Cons:
  • Appraisal estimates can sometimes be conservative and are not a substitute for a professional appraiser for high-value items.
  • Accuracy depends on good image quality, requiring clear lighting and angles.

Website: https://www.curio.app

2. Vendoo

Vendoo is a comprehensive inventory management and cross-listing tool designed for resellers who operate on multiple marketplaces. It serves as a central hub, allowing you to create a single listing and then push it to over ten platforms like eBay, Poshmark, Mercari, and Depop. This streamlined process eliminates the tedious task of manually listing items on each site, making it one of the best apps for resellers looking to scale their operations efficiently.

The platform’s real strength lies in its automation and management features. When an item sells on one marketplace, Vendoo can automatically detect the sale and delist it from all others, preventing accidental double sales. It also includes useful tools like built-in background removal powered by PhotoRoom and stale-listing reminders to help you keep your inventory fresh. These features are critical for managing the complexities of a growing inventory. For tips on managing inventory as you grow, you can learn more about starting a resale business.

Key Features & Pricing

• Standout Feature: Centralized inventory hub with powerful one-click cross-listing and automatic delisting.
• Pricing: Vendoo uses a flexible, item-metered pricing model. A free plan is available for up to 5 new items per month. Paid plans start at $8.99/month for 25 items and scale up based on volume. Add-ons for bulk features and automation are available for an extra fee.
• Best For: High-volume apparel and hard-goods resellers managing inventory across 3+ marketplaces.

3. List Perfectly

List Perfectly is a popular cross-listing and automation suite designed for resellers who prioritize unlimited listing actions. Unlike item-metered services, every List Perfectly plan allows for unlimited importing, cross-listing, and delisting/relisting across its supported marketplaces. This makes it an excellent choice for sellers who want predictable costs and the freedom to list as much as they want without worrying about hitting a monthly quota.

The platform stands out with its powerful, tiered automation features, particularly for Poshmark users. Higher-tier plans unlock advanced tools like automatic sharing, sending offers to likers, and following other users, which can significantly boost sales and engagement on that specific platform. While it doesn’t offer a traditional free trial, its 5-day/100-listing money-back guarantee gives new users a window to test its capabilities, making it one of the most robust apps for resellers focusing on high-volume listing and marketplace automation.

Key Features & Pricing

• Standout Feature: Unlimited core listing actions (import, cross-list, delist/relist) on all plans, with powerful Poshmark automations available in higher tiers.
• Pricing: Plans start at $29/month for the Simple plan. The Business plan is $49/month, and the Pro plan with advanced automation is $69/month. A 5-day/100-listing money-back guarantee is offered instead of a free trial.
• Best For: High-volume resellers who don’t want to be limited by monthly listing quotas, especially those heavily invested in the Poshmark marketplace.

4. Seller Assistant App

Seller Assistant App is a powerful Chrome extension built specifically for Amazon resellers focusing on Online Arbitrage (OA), Retail Arbitrage (RA), and wholesale sourcing. It embeds directly onto Amazon product pages, providing an instant on-page profit calculator that factors in fees, FBA costs, and RoI. This immediate access to critical data streamlines the product research process, eliminating the need to switch between multiple tabs and spreadsheets, making it one of the best apps for resellers dedicated to the Amazon marketplace.

The app’s real value lies in its risk management and bulk-processing capabilities. It features an advanced IP-Alert system that warns you about brands known to file intellectual property complaints, protecting your account health. For sourcing from supplier lists, its Bulk Restriction Checker and Price List Analyzer can process thousands of ASINs at once to identify profitable and unrestricted products. This combination of on-page analysis and bulk-sourcing tools helps Amazon sellers make faster, more informed buying decisions while minimizing risk.

Key Features & Pricing

• Standout Feature: An all-in-one Amazon product research extension with an on-page profit calculator, IP-Alert system, and bulk analysis tools.
• Pricing: Seller Assistant App offers a 14-day free trial. The paid plan starts at $15.99/month, which includes 3,500 product lookups. Higher tiers and add-ons are available for increased lookup quotas and team features.
• Best For: Amazon-focused resellers using Online Arbitrage, Retail Arbitrage, or wholesale models who need to quickly analyze products for profitability and restrictions.

5. Keepa

Keepa is an indispensable tool for Amazon resellers, offering deep historical data on pricing, sales rank, and Buy Box trends. It integrates directly into Amazon product pages via a browser extension, displaying detailed charts that reveal a product's entire sales history. This insight allows you to make informed sourcing decisions by understanding seasonal demand, price stability, and how often a product sells, making it one of the best apps for resellers focused on the Amazon marketplace.

The platform’s power lies in its comprehensive data tracking, which helps you avoid buying unprofitable inventory. You can set up price-drop alerts to be notified when an item hits your target buy price, and the Product Finder feature helps discover new sourcing opportunities based on specific criteria. While the interface can seem complex initially, mastering its charts is essential for anyone serious about competing effectively on Amazon by identifying profitable flips and understanding market dynamics.

Key Features & Pricing

• Standout Feature: Detailed historical charts embedded on Amazon listings showing price, sales rank, and Buy Box history.
• Pricing: A free version offers limited price history. The full-featured premium subscription, which includes sales rank history and advanced tools, is required for serious sourcing and costs €19 per month (approximately $20).
• Best For: Amazon FBA and FBM sellers who need in-depth data for sourcing, repricing, and competitive analysis.

6. Helium 10

Helium 10 is a full-stack software suite designed primarily for marketplace sellers on platforms like Amazon, Walmart, and TikTok Shop. Unlike apps focused on cross-listing from thrift finds, Helium 10 offers an end-to-end ecosystem for sellers who source new products or manage private label brands. Its powerful tools cover everything from initial product and keyword research to listing optimization and advertising automation, making it one of the best apps for resellers aiming to build a serious e-commerce business.

The platform's real value is in its data-driven approach. Tools like Black Box for product research and Cerebro for reverse ASIN keyword lookups allow you to analyze market demand and competition before investing in inventory. Once your product is live, you can track profits, manage PPC campaigns, and even get help with FBA reimbursements. For a more detailed breakdown of its capabilities, you can dive into our in-depth Helium 10 review.

Key Features & Pricing

• Standout Feature: Comprehensive, all-in-one toolset covering product research, keyword optimization, and operational management.
• Pricing: A limited free plan is available. Paid plans start at $29/month (Starter) and go up to $279/month (Diamond) with varying usage quotas.
• Best For: Amazon FBA and Walmart sellers focused on private label products or wholesale sourcing who need data-driven tools.

7. Jungle Scout

Jungle Scout is a powerful suite of tools designed specifically for Amazon sellers, offering deep market intelligence to find, launch, and sell products successfully. It helps resellers move beyond simple thrifting by providing data-driven insights to identify high-demand, low-competition products. Users can analyze historical sales data, track keyword performance, and even find reliable suppliers, making it an indispensable asset for anyone serious about building a brand on the world's largest marketplace.

The platform’s real value lies in taking the guesswork out of product sourcing and validation. Tools like the Product Database and Opportunity Finder allow you to filter through millions of products to uncover profitable niches. Once you find a product, the Keyword Scout and Listing Builder help you optimize your listing to rank higher in search results. While its focus is strictly on Amazon, its mature data models and clean user interface make it one of the best apps for resellers aiming to dominate that specific platform.

Key Features & Pricing

• Standout Feature: Comprehensive product and keyword research tools that provide actionable data for profitable sourcing on Amazon.
• Pricing: Jungle Scout offers tiered plans. The Basic plan starts at $29/month (billed annually) for essential research tools. The Suite plan at $49/month adds more advanced features like review automation, while the Professional plan at $84/month is for established sellers needing more robust data.
• Best For: Aspiring and established Amazon FBA resellers focused on private label products or retail arbitrage.

8. Aura Repricer

Aura Repricer is a powerful AI-driven tool designed for Amazon and Walmart sellers who need to compete for the Buy Box without sacrificing their profits. Unlike basic repricers that simply race to the bottom, Aura uses intelligent strategies to dynamically adjust prices, often raising them when possible while still retaining the Buy Box. This automation makes it one of the best apps for resellers focused on high-competition marketplaces, where manual price adjustments are impractical.

The platform’s strength is its profit-aware AI, which considers your costs, fees, and desired ROI to make smart decisions. It also offers a "Hyperdrive" feature for near-instant repricing on your most important listings and integrates with tools like InventoryLab to streamline cost management. For resellers, this means less time spent manually tweaking prices and more time sourcing profitable inventory, knowing their listings are being optimized 24/7. Accurate cost inputs are crucial for its success.

Key Features & Pricing

• Standout Feature: AI-powered repricing that aims to win the Buy Box at the highest possible price, not just the lowest.
• Pricing: Plans are based on the number of listings. The entry-level plan starts at $49/month for up to 500 listings. All plans include a 14-day free trial.
• Best For: Amazon and Walmart sellers with competitive inventory who want to automate their pricing strategy to maximize Buy Box ownership and profit margins.

9. sellerboard

sellerboard is a powerful, real-time profit analytics and operational toolkit designed specifically for Amazon sellers. It moves beyond simple sales tracking by calculating your true profit and loss, accounting for over 100 different Amazon fees, FBA costs, and advertising spend. This detailed financial dashboard gives you a clear, SKU-level view of your business’s health, making it one of the best apps for resellers serious about scaling on the Amazon marketplace.

The platform’s strength lies in bundling several crucial automations into a single subscription. Beyond analytics, it offers PPC bid automation, automated review request emails, and a reimbursement finder that flags lost or damaged FBA inventory for claims. It also provides essential alerts for listing changes and other critical account events. This integrated approach simplifies the complex operational needs of an Amazon business. To get the most out of these features, a solid understanding of inventory management for small businesses is key.

Key Features & Pricing

• Standout Feature: An all-in-one Amazon seller dashboard that combines deep profit analytics with essential automations like PPC management, review requests, and FBA reimbursements.
• Pricing: sellerboard offers tiered plans based on the number of monthly orders. Plans start at $15/month for up to 2,000 orders and scale up. A free trial is available.
• Best For: Amazon FBA and FBM sellers who need an accurate, all-in-one solution for profit analytics and operational automation without subscribing to multiple tools.

10. Pirate Ship

Pirate Ship is a web-based shipping software that gives resellers access to deeply discounted USPS and UPS rates without any monthly fees or markups. It’s designed to simplify the shipping process, allowing users to quickly buy and print postage directly from their browser. By passing commercial pricing directly to its users, it stands out as one of the best apps for resellers looking to significantly cut down on operational costs without committing to a paid subscription.

The platform's strength is its simplicity and cost-effectiveness, making it ideal for both small-scale sellers and high-volume operations. It integrates seamlessly with major e-commerce platforms like Shopify and WooCommerce, automatically importing orders for quick label processing. While its focus is on U.S. domestic and international shipping, the available discounts are often the lowest you can find. Its straightforward interface is particularly useful when dealing with complex shipments; for example, you can learn more about shipping antique furniture and how services like this can help.

Key Features & Pricing

• Standout Feature: Completely free access to the deepest USPS and UPS commercial shipping discounts with no hidden fees.
• Pricing: 100% free to use. You only pay for the exact cost of the postage you purchase.
• Best For: U.S.-based resellers of all sizes who want the cheapest shipping rates without a monthly subscription.

11. Amazon Seller App

The Amazon Seller App is the official mobile command center for anyone selling on the world's largest online marketplace. It’s an essential tool for retail arbitrage, allowing you to scan barcodes in stores to instantly check an item's potential profitability, sales rank, and FBA fees. This immediate access to data lets you make smart sourcing decisions on the spot, directly from your phone.

Beyond sourcing, the app provides a reliable way to manage your entire Amazon business on the go. You can create listings, respond to customer messages, track sales performance, and manage your inventory without needing a computer. While it lacks cross-listing features, its seamless integration with the Amazon ecosystem makes it an indispensable and one of the best apps for resellers focused exclusively on the Amazon platform.

Key Features & Pricing

• Standout Feature: In-store barcode scanning that provides instant profitability analysis, including sales rank and estimated FBA fees.
• Pricing: The app is free to use, but you must have an active Amazon seller account. Individual plans are free with per-item fees, while the Professional plan is $39.99/month.
• Best For: Dedicated Amazon sellers, especially those who practice retail and online arbitrage and need to manage their business from anywhere.

12. eBay Seller Hub

eBay Seller Hub is the free, centralized dashboard for managing all aspects of an eBay business. It consolidates everything a seller needs, from listing creation and order fulfillment to marketing and performance analytics, into one unified interface. For serious resellers focused primarily on the eBay marketplace, this built-in tool is indispensable, eliminating the need for many third-party subscriptions and simplifying daily operations.

The platform’s greatest value comes from its integration of powerful, native tools. It features bulk editing for listings, customizable business policies, and detailed performance reports. Crucially, it includes access to Terapeak, a robust market research tool that provides data on what’s selling, when, and for how much. This integration makes it one of the best apps for resellers who want to make data-driven decisions without ever leaving the eBay ecosystem.

Key Features & Pricing

• Standout Feature: A comprehensive, free, and fully integrated management center with powerful built-in market research via Terapeak.
• Pricing: Completely free to use for all eBay sellers. Access is included with your seller account.
• Best For: Dedicated eBay sellers of all volumes who want a native, all-in-one solution for managing their entire store.

Top 12 Reseller Apps: Feature Comparison

Choosing the Right App to Scale Your Reselling Business

Navigating the world of reselling can feel overwhelming, but the right digital tools can transform a cluttered hobby into a streamlined, profitable business. We've explored a wide range of options, from powerful Amazon-specific suites like Helium 10 to essential multi-platform workhorses like Vendoo and List Perfectly. The key takeaway is that there is no single "best" app for everyone. The ideal toolset is deeply personal and depends entirely on your unique business model, goals, and current challenges.

The most effective approach is to perform a simple self-audit. Identify the single biggest bottleneck in your current workflow. Are you spending too much time creating individual listings? A cross-listing tool is your answer. Are you struggling to price items competitively on Amazon? A repricer like Aura or a data tool like Keepa is what you need. For those specializing in unique, hard-to-identify items like antiques and vintage goods, a specialized identification app like Curio will provide the most significant return on investment.

A Strategic Approach to Implementation

Instead of trying to adopt five new apps at once, start with one. Focus on the tool that solves your most pressing problem. Give yourself time to integrate it fully into your daily operations and master its features. Once that app becomes a natural part of your process and you're seeing tangible benefits, like faster listing times or higher profit margins, you can then evaluate the next bottleneck to tackle.

When choosing, consider these crucial factors:

• Your Primary Marketplaces: An eBay-only seller has different needs than someone balancing Etsy, Poshmark, and Facebook Marketplace. Ensure the app supports the platforms where you actively sell.
• Your Inventory Type: Sourcing vintage collectibles requires different tools than flipping brand-new retail arbitrage items. Match the app's specialty to your niche.
• Your Business Stage: A new seller might prioritize a free or low-cost shipping solution like Pirate Ship. A high-volume seller, however, will see a greater return from an investment in a comprehensive analytics platform like sellerboard.

Final Thoughts on Building Your Reselling Toolkit

The best apps for resellers are not just about adding technology for technology's sake. They are about strategic implementation to reclaim your most valuable asset: time. By automating tedious tasks, providing critical data for sourcing, and simplifying complex processes like shipping and analytics, these tools empower you to focus on what you do best. Whether it's hunting for hidden gems at an estate sale or curating a unique online storefront, the right app works in the background, helping you build a more sustainable and scalable business. Start small, solve your biggest problem first, and watch your reselling enterprise grow.

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Ready to take the guesswork out of sourcing antiques, vintage items, and collectibles? Curio uses advanced image recognition to provide instant identification, dating, and real-time market pricing from just a photo. Try Curio today and turn your unique finds into profitable sales with confidence.