14 Best Auction Apps for Online Bidding in 2026

Looking for the best deals through online bidding? Auction apps have transformed how we buy and sell, putting the excitement of live bidding, rare collectibles, and wholesale liquidation right in your pocket. From scoring designer items at a fraction of retail on eBay and ShopGoodwill to participating in luxury art sales on Sothebys or sourcing wholesale inventory on B-Stock, there is an auction app for every type of buyer in 2026.

In this guide, we have tested and ranked the 14 best auction apps available for Android and iOS. Whether you are a casual deal hunter, a serious collector of rare items, or a reseller building your business, these apps will help you find incredible bargains and bid with confidence. We cover penny auctions, live video auctions, luxury house sales, vehicle salvage auctions, and everything in between.

1. DealDash (Rating 4.7)

DealDash is one of the most popular penny auction apps where users bid on brand-new products at heavily discounted prices. Every bid raises the price by just one cent, and the last bidder when the timer expires wins the item. You can bid on electronics, kitchen appliances, gift cards, home decor, and much more. What sets DealDash apart is its Buy It Now guarantee: if you do not win an auction, you can purchase the item at retail price and get all your bids back. This risk-free model makes it ideal for newcomers to online auctions. The app sends push notifications so you never miss an auction ending.

2. Copart (Rating 4.7)

Copart is the leading platform for online vehicle auctions, offering salvage cars, trucks, motorcycles, boats, and industrial equipment. With over 200,000 vehicles available daily from 200+ locations, Copart connects buyers with insurance companies, dealerships, and fleet operators. The app allows you to search by make, model, year, damage type, and location. You can place preliminary bids before the live auction begins and track vehicles in real time. Copart also provides detailed vehicle condition reports, multiple photos, and estimated repair costs, making it an essential tool for auto dealers, mechanics, and car enthusiasts looking for great deals on vehicles.

3. Whatnot (Rating 4.7)

Whatnot has become the fastest-growing live auction marketplace, specializing in collectibles, trading cards, sneakers, sports memorabilia, vintage toys, and pop culture items. The app combines live video streaming with real-time bidding, creating an interactive shopping experience that feels like watching your favorite creators while scoring incredible deals. Sellers go live, showcase their items on camera, and buyers bid in the chat. Whatnot authenticates high-value items and provides buyer protection. Whether you are hunting for rare Pokemon cards, vintage comic books, or limited-edition sneakers, Whatnot delivers the thrill of a live auction from your phone.

4. eBay (Rating 4.6)

eBay remains the undisputed king of online auctions with over 1.7 billion live listings at any given time. The app lets you bid on virtually anything from vintage electronics to designer fashion, rare collectibles to everyday essentials. The Best Offer feature allows you to negotiate prices directly with sellers, while the traditional auction format creates exciting bidding wars. eBay offers robust buyer protection through its Money Back Guarantee, and the app provides real-time notifications when you are outbid. Advanced search filters, saved searches, and price tracking make it easy to find exactly what you want. With presence in 190 countries, eBay connects you to the largest global marketplace.

5. ShopGoodwill (Rating 4.6)

ShopGoodwill is the official online auction platform for Goodwill Industries, where you can bid on donated items ranging from designer clothing and jewelry to electronics, antiques, and collectibles. Auctions start at just $1, making it one of the most affordable bidding platforms available. All proceeds support Goodwills community programs and job training initiatives, so every purchase has a positive social impact. The app features timed auctions with clear end dates, multiple photos per item, and detailed condition descriptions. Bargain hunters frequently discover high-value designer items, rare vintage pieces, and electronics at a fraction of retail value.

6. Mercari (Rating 4.5)

Mercari is a mobile-first marketplace that combines fixed-price listings with offer-based negotiation, creating an auction-like buying experience. With over 50 million downloads, the app makes it incredibly easy to buy and sell everything from fashion and electronics to home goods and sports equipment. The Make an Offer feature lets you negotiate prices directly, while Mercaris prepaid shipping labels simplify the selling process. Buyer protection ensures you receive items as described, and the rating system builds trust within the community. Mercari is especially popular for fashion resale and is one of the best alternatives to traditional auction platforms.

7. HiBid (Rating 4.7)

HiBid connects you directly with thousands of local and regional auction houses across the United States. Unlike global platforms, HiBid specializes in traditional estate sales, farm equipment auctions, antique dealer liquidations, and government surplus auctions. You can browse upcoming auctions by category, location, or auction house, and place absentee bids or participate in real-time online bidding. The app supports both timed and live auctions with seamless integration. HiBid is the go-to platform for finding unique local items like furniture, machinery, real estate, and agricultural equipment that you will not find on mainstream auction apps.

8. Catawiki (Rating 4.5)

Catawiki is a European-born curated auction platform that specializes in rare and exceptional objects. Every item is reviewed and approved by one of Catawikis 240+ in-house experts before being listed, ensuring authenticity and quality. Categories include fine art, vintage watches, classic cars, rare wines, gemstones, stamps, coins, and designer fashion. Auctions run for 7 days with no reserve prices, creating genuine excitement and competitive bidding. The app provides detailed expert descriptions, provenance information, and professional photography for every lot. Catawiki processes over 75,000 auctions monthly, making it the premier European auction destination.

9. Invaluable (Rating 4.1)

Invaluable is the worlds largest online marketplace for fine art, antiques, and collectibles, partnering with over 5,000 auction houses globally. The app provides access to live and timed auctions from prestigious establishments like Christies, Bonhams, and hundreds of specialty auction houses. You can browse by category including paintings, furniture, jewelry, decorative arts, and Asian antiquities. The live bidding feature lets you participate in real-time auctions from anywhere in the world, while the absentee bidding option places bids on your behalf. Invaluable also offers auction results and price databases, making it an essential research tool for collectors and dealers.

10. LiveAuctioneers (Rating 4.1)

LiveAuctioneers connects art and antique enthusiasts with curated auctions from 4,500+ verified auction houses worldwide. The app specializes in fine art, jewelry, furniture, coins, Asian art, and decorative objects. Its real-time bidding technology puts you directly in the auction room, with live audio and video streams from the auction floor. You can set maximum bids and let the system bid incrementally on your behalf, or jump in manually during the live event. LiveAuctioneers provides comprehensive lot descriptions, condition reports, and high-resolution images. The platform also offers price guides based on historical auction results, helping you make informed bidding decisions.

11. Sothebys (Rating 4.8)

Sothebys is the worlds most prestigious auction house, founded in 1744, and its app brings luxury auctions directly to your smartphone. The platform specializes in fine art, diamonds, rare jewelry, luxury watches, wine, classic automobiles, and high-end real estate. Each auction lot includes detailed provenance, expert condition reports, and exhibition-quality photography. The app features live auction streaming where you can bid in real time against collectors worldwide. Sothebys also offers curated Buy Now selections for instant luxury purchases. While this platform caters primarily to high-net-worth collectors, anyone can browse, follow auctions, and place bids for items ranging from thousands to millions of dollars.

12. AuctionZip (Rating 4.0)

AuctionZip is the largest database of live and local auction events in the United States. The app helps you discover upcoming auctions near your location, browse item catalogs, and place bids online. Categories cover everything from antiques and collectibles to farm equipment, vehicles, real estate, and estate sales. AuctionZip lists auctions from independent auctioneers, estate liquidators, and government agencies. The app includes an interactive map feature to find auctions within a specific radius, complete event details with dates and preview times, and the ability to save favorite auctioneers. Its an essential companion for anyone who loves attending live auctions or wants to bid remotely.

13. B-Stock (Rating 4.3)

B-Stock is the leading business-to-business liquidation auction platform trusted by major retailers including Amazon, Walmart, Target, and Home Depot. The app lets registered buyers bid on pallets and truckloads of overstock, returned, and refurbished merchandise at significantly below wholesale prices. Categories include consumer electronics, apparel, home goods, toys, and more. Each listing includes detailed manifests showing exactly what items are in each lot, their retail values, and condition grades. B-Stock is ideal for resellers, small business owners, and entrepreneurs looking to source inventory at rock-bottom prices. The competitive auction format ensures fair market pricing.

14. Bonanza (Rating 4.2)

Bonanza is an entrepreneur-friendly marketplace that combines auction-style and fixed-price selling in a single platform. With over 50,000 seller storefronts and millions of listings, Bonanza offers everything from fashion and accessories to home goods and tech gadgets. The app allows sellers to import listings directly from eBay, Amazon, and Etsy, making it easy to expand your selling reach. Buyers benefit from competitive pricing, direct seller communication, and the ability to make offers on most items. Bonanza charges lower fees than eBay, making it especially attractive for sellers. The platform automatically synchronizes inventory across multiple channels.

Pro Tips for Winning Online Auctions

Mastering auction apps takes practice and strategy. Here are proven techniques used by experienced bidders:

• Set a Maximum Budget - Decide your absolute maximum bid before the auction starts and stick to it. Auction fever is real, and it is easy to overpay when emotions take over.
• Research Completed Listings - On eBay and similar platforms, check completed auctions to understand the true market value of items before bidding.
• Bid at the Last Moment - The strategy called "sniping" involves placing your maximum bid in the final seconds of an auction. This prevents other bidders from having time to respond. Many experienced eBay bidders use this technique exclusively.
• Enable Notifications - Turn on push notifications and alerts for auctions you are watching. Missing the end of an auction by minutes is frustrating.
• Verify Seller Reputation - Always check seller ratings, feedback history, and return policies before placing bids, especially on high-value items.
• Factor in Total Cost - Add shipping fees, buyers premiums (common on art auction platforms), import duties, and taxes to your maximum bid. The hammer price is rarely the final cost.
• Use Secure Payment Methods - Stick to platform-approved payment methods that offer buyer protection. Use financial management tools to track your auction spending.
• Inspect Photos Carefully - Zoom into every photo and read condition reports thoroughly. If details are missing, message the seller before bidding.

Types of Auction Apps Explained

Penny Auctions

Apps like DealDash use a pay-per-bid model where each bid costs a small fee and raises the price by one cent. While items can sell for extremely low prices, the total cost includes all bid fees. These platforms work best when you use the Buy It Now guarantee as a safety net.

Traditional Online Auctions

Platforms like eBay and HiBid follow the classic auction format: items have a starting price, bidders compete over a set time period, and the highest bid wins. These offer the widest selection and are suitable for both casual buyers and serious collectors.

Live Video Auctions

Whatnot pioneered the live streaming auction format where sellers showcase items on camera in real time. This creates an engaging, interactive experience similar to attending a physical auction house from your connected device.

Luxury and Fine Art Auctions

Sothebys, Invaluable, and LiveAuctioneers serve the high-end market with authenticated luxury goods, fine art, and rare collectibles. These platforms require registration and sometimes deposits for premium lots.

Liquidation and Wholesale Auctions

B-Stock and similar platforms sell overstock, returned, and refurbished merchandise in bulk. These are ideal for resellers and small businesses looking to source inventory at wholesale prices from major retailers.

Frequently Asked Questions

Are auction apps safe to use?

Yes, all apps listed in this guide are established platforms with buyer protection policies, secure payment processing, and verified seller programs. Major platforms like eBay, Whatnot, and Sothebys invest heavily in fraud prevention and authentication services. Always use the apps official payment system and never complete transactions outside the platform.

What is the best auction app for beginners?

eBay is the best starting point for auction beginners thanks to its massive selection, strong buyer protection, and intuitive bidding interface. ShopGoodwill is another excellent beginner-friendly option with low starting prices and no pressure environment. For collectibles enthusiasts, Whatnots live format makes bidding exciting and accessible.

How do penny auctions work?

In penny auctions like DealDash, you purchase bid packs in advance. Each bid you place costs a small amount (typically 15 to 60 cents), raises the item price by one cent, and resets the countdown timer. The last person to bid when the timer reaches zero wins the item at the displayed price. While winning prices can be extremely low, the cumulative cost of bid packs should be factored into your total spending.

Can I sell items on auction apps?

Most auction apps support selling as well as buying. eBay, Mercari, Whatnot, and Bonanza all allow individual sellers to list items. Professional selling on platforms like LiveAuctioneers or Sothebys typically requires partnership with an established auction house.

Which auction app has the lowest fees?

Bonanza generally offers the lowest seller fees among major auction platforms, charging around 3.5 percent for items sold under $500. ShopGoodwill charges no buyer premiums at all. eBay charges approximately 13 percent including payment processing fees. Luxury platforms like Sothebys and Invaluable charge buyers premiums of 20 to 28 percent on top of the hammer price.

Are online car auctions worth it?

Online car auctions through Copart can offer significant savings, especially on salvage and total-loss vehicles. However, most vehicles on Copart cannot be test driven and may have substantial damage. These auctions work best for experienced buyers, mechanics, and auto body professionals who can accurately assess repair costs. Always review the full vehicle condition report and all available photos before bidding.

Final Thoughts

The world of online auctions has never been more accessible or diverse. Whether you are hunting for a vintage Rolex on Sothebys, flipping inventory from B-Stock, scoring $1 deals on ShopGoodwill, or joining the community excitement of Whatnot live streams, there is a perfect auction app for your goals. Start with eBay or DealDash if you are new to bidding, explore niche platforms like Catawiki and LiveAuctioneers for specialized collections, and leverage wholesale platforms like B-Stock for reselling opportunities. Remember to set clear budgets, research values thoroughly, and enjoy the thrill of the bid. For more money-saving tools and marketplace apps, check out our guides on buy now pay later alternatives, communication apps, and selling apps to maximize your online buying and selling potential.