Comparison

Bring a Trailer Auctions vs ZenSupply.com

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Bring a Trailer Auctions

Discover, discuss, and buy classic and collector vehicles through transparent auctions. Engage with a knowledgeable community and receive real-time updates on your favorite listings. Bid with confidence thanks to community vetting and sniping protection.

Highlights
  • Browse and bid on vehicles
  • Transparent auction listings
  • Community vetting and discussion
  • Custom alerts and notifications
  • Sniping protection
  • Watchlist functionality
  • Explore results with charts
Features
Read full description

Bring a Trailer Auctions are the best way to discover, discuss, and buy classic, collector, and enthusiast vehicles. We curate vehicles submitted by our users and craft transparent auction listings that present the vehicles as they are—without superlatives or dubious used-car-lot language. BaT’s knowledgeable community of more than 900,000 users and over 400,000 registered bidders help vet each listing so potential buyers can bid with confidence. The BaT app now makes it easy to browse and bid on vehicles anywhere, anytime–with streamlined vehicle submission functionality coming soon for sellers. DISCOVER AND BROWSE Find out what’s trending, see what’s ending soon, and watch the latest bids roll in on the Discover page. Know what you’re looking for? Search and filter in the Auctions tab to narrow down hundreds of listings. VARIETY OF VEHICLES BaT’s curation mirrors our eclectic taste: off-roaders are mixed with track cars, domestic makes with foreign brands, motorcycles with vintage RVs, parts with projects. We even auction re-creations, kit cars, boats, and automobilia! COMMENT THREADS We’re known for our knowledgeable and active community of enthusiasts. Easily tag other users in the app to keep the conversation going. TRANSPARENT BIDDING Place bids quickly and easily, with no surprise fees. The BaT buyer fee is 5% of the final bid price on top of the winning bid, with a minimum of $250 and a maximum of $7,500. Any additional dealer fees required by the seller will be clearly stated in the listing when applicable. SNIPING PROTECTION Each time a bid is placed at the end of an auction, the clock is extended by two minutes–giving everyone a fair chance to place their maximum bid. CUSTOM ALERTS AND NOTIFICATIONS Push notifications and the Activity Feed keep you up to date on your favorite topics, so you can stay on top of the action in real time. We can let you know when a seller adds more photos to a listing, when your favorite models go live, and when you’ve been outbid, among other things. Update settings for these events, as well as emails and sounds for bids and comments, in the More tab. NEW ENDING SOON EXPERIENCE Now you can keep an eye on multiple auctions simultaneously as they count down in the final minutes. In the new Ending Soon section, watch the comments and bids roll in for all auctions ending in the next 24 hours. EXPLORE RESULTS WITH INTERACTIVE CHARTS See the big picture or focus on what matters to you. Easily find results by adjusting the bid amount, timeframe, or vehicle year, or by making a selection right on a results chart. WATCHLIST The watchlist is home base for all of your favorite auctions, makes, models, categories, eras, and origins–just hit the bell or star to save items. We’ll even let you know when you’ve been outbid on a watched auction so you can quickly place another bid! SELLER TOOLS Quickly upload photos, reply to bidders, adjust your reserve, and see stats for your live listings. Submissions and more seller features are coming to the app soon!

About

ZenSupply.com

Streamline your business's supply chain with this intuitive mobile app. Easily source industrial and MRO supplies, reorder items quickly, track shipments in real-time, and gain insights into spending. Facilitates team collaboration and ensures secure, compliant purchasing.

Highlights
  • Smarter sourcing from extensive catalogs
  • Lightning-fast reordering and recurring orders
  • Real-time order tracking and notifications
  • Spend analytics and pricing comparison
  • Team collaboration with role-based permissions
  • Secure and compliant purchasing workflows
Features
Read full description

The ZenSupply iOS app brings intelligent, intuitive supply chain management to your fingertips — empowering businesses to source, reorder, and manage essential products in minutes, not hours. Designed for busy professionals, the ZenSupply app makes purchasing smarter and restocking effortless — whether you’re at your desk, on the warehouse floor, or on the go. Key Features - Smarter Sourcing Browse from an extensive catalog of industrial, MRO, and operational supplies. Curated recommendations tailored to your business needs. Save favorite products and suppliers for one-tap reordering. - Lightning-Fast Reordering Instantly reorder commonly used items from your purchase history. Create and manage customizable recurring orders. Receive automated restock reminders before inventory runs low. - Real-Time Order Tracking View the status of open orders with delivery timelines. Get push notifications for order updates and delivery events. Track shipments across carriers in one place. - Insights & Analytics See spend analytics and usage trends. Compare pricing across suppliers to optimize costs. Export reports for finance or operations reviews. - Team Collaboration Invite team members with role-based permissions. Approve orders on the go with quick mobile authorization. Share notes and purchase history across your organization. - Secure & Compliant Enterprise-grade data protection and secured payment options. Support for corporate billing, purchase orders, and approval workflows. Visibility and audit trail for compliance and budgeting. Why ZenSupply The ZenSupply iOS app is built for operational simplicity — replacing legacy systems and manual purchasing with a streamlined, mobile-first experience that drives efficiency, reduces costs, and keeps your business moving.

Screenshots

Bring a Trailer Auctions4 screens
ZenSupply.com4 screens

Verdict

The call

Bring a Trailer Auctions and ZenSupply.com both sit at 4.8 stars, but that hides the real split: 100% of ZenSupply.com's written reviews are positive against 36% of Bring a Trailer Auctions's. ZenSupply.com also leads on monetization model (free vs free with in-app purchases) and iOS requirement (13.0 vs 17.0). Bring a Trailer Auctions's advantage is ratings volume (7.9K vs 25). On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ZenSupply.com holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Bring a Trailer Auctions has 7.9K ratings behind it against 25, so its average is the more settled of the two. Written reviews point the same way: 36% of Bring a Trailer Auctions's written reviews are positive against 100% of ZenSupply.com's.

UpkeepUpdate frequency

Bring a Trailer Auctions ships an update fortnightly, ZenSupply.com weekly. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Bring a Trailer Auctions versus ZenSupply.com: the parameters behind the verdict, then further details
ParameterBring a Trailer AuctionsZenSupply.com
PriceFreeFree
Rating4.8 (7.9K ratings)5.0 (25 ratings) — better
Positive reviews36.1% of reviews100.0% of reviews — better
Number of ratings7.9K — better25
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size77 MB60 MB
Age rating17+4+
DeveloperBring A TrailerZenSupply, Inc

Customer experience

Bring a Trailer Auctions

All ratings7,726 ratings
Positive97.4%
Neutral1.2%
Negative1.3%
Written reviews133 reviews
Positive36.1%
Neutral14.3%
Negative49.6%

ZenSupply.com

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Bring a Trailer Auctions

Reported bugs

3 issues
  • Login issues
  • Slow loading and freezing
  • Notifications overload

Requested features

3 requests
  • Add filter by location/distance
  • Improve bidding interface
  • Optimize for iPad

ZenSupply.com

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Bring a Trailer Auctions

No in-app purchases

None

ZenSupply.com

No in-app purchases

Questions

Is Bring a Trailer Auctions free?
Bring a Trailer Auctions is free to download, with no in-app purchases.
Is ZenSupply.com free?
ZenSupply.com is free to download, with no in-app purchases.
Which has better reviews, Bring a Trailer Auctions or ZenSupply.com?
ZenSupply.com is rated higher. Bring a Trailer Auctions averages 4.8 out of 5 from 7.9K ratings, while ZenSupply.com averages 5.0 from 25 ratings.
Do Bring a Trailer Auctions or ZenSupply.com have ads?
Neither Bring a Trailer Auctions nor ZenSupply.com shows ads.
Which is updated more often, Bring a Trailer Auctions or ZenSupply.com?
Bring a Trailer Auctions ships an update fortnightly, and ZenSupply.com weekly. Most recently, Bring a Trailer Auctions was updated on November 12, 2026 and ZenSupply.com on October 30, 2026.

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