Ultimate Auction (available at getultimateauction.com), developed by Inception Software LLP, is a suite of WordPress-based auction software designed to help businesses and entrepreneurs launch professional online auction websites. It offers three core products:
1. Online Auction Software — a full-stack solution that builds a complete auction marketplace from scratch using pre-built templates, ideal for general merchandise or multi-category auction sites.
2. Car Auction Software — a specialized vehicle auction platform with car-specific fields, advanced search, and offline deal facilitation for vehicle buyers and sellers.
3. Auction Plugin — a WooCommerce add-on that adds auction functionality to any existing WordPress website without requiring a site rebuild.
All three products are built on WordPress and WooCommerce, making them extensible, beginner-friendly, and compatible with thousands of third-party plugins.
The three products serve distinct use cases:
Online Auction Software builds your entire auction website from zero — homepage, listing pages, product detail pages — using ready-made templates. It’s best for anyone starting a new auction business from scratch with no existing website.
Car Auction Software is purpose-built for vehicle auctions. It includes pre-defined car fields (make, model, year, mileage, VIN, etc.), advanced search with filtering and saved search profiles, vehicle-specific listing layouts, and an offline coordination system for buyers and sellers to arrange car and payment delivery.
Auction Plugin (WooCommerce Auction PRO) is designed for existing WordPress site owners who want to add auction listings alongside their current products or content — no new site needed. It plugs directly into WooCommerce and works with your current theme.
No advanced technical skills are required. Ultimate Auction is built on WordPress, the world’s most beginner-friendly website platform. The Online Auction Software and Car Auction Software include pre-built page templates so your site can be live in minutes after installation.
All you need to get started is a domain name and a web hosting account (Bluehost is recommended). After purchasing, you can contact the Ultimate Auction support team for installation assistance. The Auction Plugin installs the same way as any standard WordPress plugin — via the WordPress dashboard under Plugins → Add New → Upload File.
Minimum server requirements: PHP 7.2+, MySQL 5.6+, and the latest version of WooCommerce. The support team also provides user guides, a video library, and one-on-one help.
Because Ultimate Auction is built on WooCommerce, it supports 50+ payment gateways out of the box — including PayPal, Stripe, Square, Google Pay, Amazon Pay, PayFast, and many more.
Higher-tier plans add advanced payment automation:
These payment hold and auto-debit features significantly reduce non-paying winners by charging the card automatically the moment an auction closes.
Yes — both are supported on Business and All Access plans.
Proxy Bidding: A buyer sets a maximum bid amount, and the system automatically places the lowest necessary bid on their behalf to keep them in the lead — without them having to return manually. The platform only bids up to their preset maximum.
Anti-Sniping / Soft-Close: If a bid is placed in the final moments of an auction (the time window is configurable by the admin), the countdown timer is automatically extended. This prevents last-second sniping and gives all participants a fair opportunity to respond — ensuring more competitive and legitimate auction outcomes.
Yes. Ultimate Auction supports a full seller marketplace model:
Online Auction Software (All Access): Includes a Seller Module with a front-end seller dashboard. Site owners can enable seller registration, and registered sellers can list their own auction products. You can collect seller commissions and automatically transfer payments to sellers’ bank accounts via Stripe.
Auction Plugin (Business & All Access): Seller listing is supported through integration with WCFM Marketplace, one of the most popular WordPress multi-vendor solutions.
Car Auction Software (Business & All Access): Includes seller registration and a seller dashboard with Stripe-powered bank account connections, plus an Offline Deal Facilitation feature that lets the site owner earn a buyer’s commission while buyers and sellers handle car handover and payment privately.
All three products offer both Annual and Lifetime licensing across three tiers — Starter, Business, and All Access.
Auction Plugin:
Annual: $79 / $99 / $149 per year (1, 3, unlimited sites)
Lifetime: $249 / $299 / $399
Online Auction Software:
Annual: $149 / $299 / $499 per year (1, 3, unlimited sites)
Lifetime: $699 / $999 / $1,799
Car Auction Software:
Annual: $299 / $399 / $499 per year (1, 3, unlimited sites)
Lifetime: $699 / $999 / $1,799
Lifetime licenses cover at least 4–5 years of support and updates. License upgrades are available — contact the support team with your purchase details to pay the difference.
Ultimate Auction offers a 14-Day Money Back Guarantee — no questions asked — on all paid plans. If the software does not meet your needs within 14 days of purchase, you can request a full refund.
While there is no time-limited free trial, you can fully explore the software before buying through live demo environments:
Yes. Ultimate Auction is translation-ready and fully compatible with WPML, LocoTranslate, and My WP Translate. Using these tools, you can translate your entire auction site — listings, bidding interface, emails, navigation, and checkout — into any language.
The All Access plan of the Auction Plugin also supports currency switching via Aelia Currency Switcher, allowing bidders and buyers to view prices and place bids in their local currency.
These localization features make Ultimate Auction a capable choice for running international auction platforms that serve buyers and sellers across multiple countries.
No. Ultimate Auction does not impose any limit on the number of auction products or active listings you can create. You can list and run as many auctions as your business requires.
For large catalogs, the team recommends using a dedicated server (rather than shared or VPS hosting) to ensure your site can handle high volumes of simultaneous bids and traffic without performance issues.
The All Access plan also includes a Bulk Upload feature (CSV/XLS import) so you can add hundreds of auction products at once without manual entry — ideal for high-volume auction businesses.
Ultimate Auction provides a comprehensive multi-channel notification system:
Email (All Plans): Bid placed, bid won, payment confirmation, registration confirmation, user registration approval/rejection, lost password.
Email (Business & All Access): Outbid alerts, ending-soon reminders, payment reminders, user comments.
SMS via Twilio (Business & All Access): Outbid, auction won, and ending-soon text messages sent directly to bidders’ phones.
WhatsApp via Twilio (All Access): Outbid, auction won, and ending-soon WhatsApp messages — reaching bidders on the world’s most-used messaging app.
This layered notification system keeps buyers engaged, reduces abandoned wins, and prompts timely payment — all automatically.
Yes. When using the Timed Auction Event feature in the Online Auction Software, the platform automatically generates a single consolidated order for each user. This order combines the winning amounts from every lot they win within that event, so a bidder who wins multiple items completes just one checkout — rather than paying separately for each item.
This significantly improves the buyer experience and reduces payment drop-off, since winners are less likely to abandon payment when the process is streamlined into a single transaction.