BB auctions vs Stacker Gold & Silver Exchange
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BB auctions
Participate in live auctions for Mexican numismatic items. Register, create an account, and place bids both before and during live events. Review past auction results.
- Conduct numismatic auctions
- Register and create account
- Place pre-auction bids
- Live bidding functionality
- View past auction results
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This app is mainly focused in conducting auctions for Mexican numismatics items. This application will allow you to do the following. -Register and create your account. -Place bids prior to the auction. -Live bidding. -View results of previous auctions.
Stacker Gold & Silver Exchange
This app helps precious metals enthusiasts track their collections, monitor market prices, and buy, sell, or trade items. Discover verified dealers, connect with other members, and stay informed with news and event listings. Advanced AI tools assist with item identification and pricing.
- Track precious metal holdings
- Monitor live market prices
- Buy, sell, and trade items
- Discover verified dealers
- In-app messaging
- Save favorites and wish lists
- Precious metals news
- AI-powered tools
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Kelt Marketplace is the premium app for precious metals collectors, stackers, and traders who want one place to track their holdings, follow the market, discover opportunities, and connect with the community. Whether you collect gold, silver, platinum, or palladium, Kelt Marketplace helps you stay organized and informed with a clean, fast, mobile-first experience built for the way real stackers buy, sell, trade, and manage their collections. TRACK YOUR STACK Build your personal portfolio with detailed holdings for coins, bars, rounds, and other precious metal assets. Add quantity, weight, acquisition cost, and product details, then view your collection in a polished dashboard designed to make your stack easy to understand at a glance. FOLLOW LIVE MARKET PRICES Monitor spot prices with a dedicated markets experience built around precious metals. Keep up with price movement, check current values, and use market context to make smarter decisions when buying, selling, or trading. BUY, SELL, AND TRADE IN THE MARKETPLACE Browse listings from other users, explore what people are selling or trading, and create your own listings with photos and item details. Kelt’s marketplace is built specifically for the precious metals world, making it easier to find relevant listings and connect with serious buyers and sellers. DISCOVER VERIFIED DEALERS Explore a growing dealer directory and find trusted businesses within the community. Users can browse dealer profiles, request quotes, and connect more directly with sellers and shops participating in the Kelt Marketplace ecosystem. MESSAGE OTHER MEMBERS Use built-in messaging to communicate about listings, offers, quotes, and exchange opportunities. Kelt Marketplace makes it easier to move conversations from discovery to action without leaving the app. SAVE FAVORITES AND BUILD A WISH LIST Keep track of listings, dealers, and items you want most. Your wish list helps other users understand what you’re looking for, making trades and conversations more relevant. STAY INFORMED WITH PRECIOUS METALS NEWS Read the latest precious metals headlines and market-related news in a streamlined in-app reading experience designed to reduce clutter and keep the focus on the story. EXPLORE COIN SHOWS AND EVENTS Browse upcoming coin shows and related events, save the ones that matter to you, and stay plugged into the wider collector and dealer community. USE SMART AI TOOLS Kelt Marketplace includes advanced AI-powered tools designed for collectors and traders, including item identification, pricing guidance, and counterfeit-awareness support. These tools are built to help you evaluate pieces more confidently and make better-informed decisions. AI results are intended as guidance and should be independently verified for important transactions. JOIN THE COMMUNITY Kelt Marketplace is more than a tracker. It is a place for stackers to share pickups, talk markets, discuss strategy, and participate in a growing network of people passionate about precious metals. PREMIUM EXPERIENCE Kelt Marketplace offers a premium membership that unlocks powerful features across stack management, marketplace tools, messaging, coin shows, community access, and AI utilities. Kelt Marketplace is built for: • Precious metals collectors • Gold and silver stackers • Coin enthusiasts • Bullion buyers and sellers • Dealers and traders • Anyone who wants a better way to manage and explore the world of precious metals If you take precious metals seriously, Kelt Marketplace gives you a premium home base for your stack, your market activity, and your next opportunity. If you want, I can also give you: Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: BB auctions at none against Stacker Gold & Silver Exchange's 6. BB auctions also leads on iOS requirement (16.0 vs 18.0). Stacker Gold & Silver Exchange's advantage is update cadence (every 2 days vs every 6 months). On price, rating, ratings volume 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
Both are free to download. Stacker Gold & Silver Exchange sells 6 in-app purchases, starting at $5.95 per month. BB auctions asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for BB auctions against 5.0 for Stacker Gold & Silver Exchange. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
BB auctions ships an update every 6 months, Stacker Gold & Silver Exchange every 2 days. The most recent releases landed on October 17, 2026 and October 21, 2026 respectively.
| Parameter | BB auctions | Stacker Gold & Silver Exchange |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 6 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 136 MB | 20 MB |
| Age rating | 9+ | 4+ |
| Developer | BRIGGS & Bustos LLC | Sivility Systems LLC |
Customer experience
BB auctions
Stacker Gold & Silver Exchange
In-app purchases
BB auctions
No in-app purchases
Stacker Gold & Silver Exchange
- Monthly Subscription3 Days trial$5.951 Month
- 3-Month Subscription3 Days trial$14.953 Months
- 6-Month Subscription3 Days trial$24.956 Months
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- 12-Month Subscription3 Days trial$59.991 Year
- Collector Founders Club$5.95
- Founders Club$149.00
Questions
Is BB auctions free?
Is Stacker Gold & Silver Exchange free?
Which has better reviews, BB auctions or Stacker Gold & Silver Exchange?
Do BB auctions or Stacker Gold & Silver Exchange have ads?
Which is updated more often, BB auctions or Stacker Gold & Silver Exchange?
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