HobbyGM vs Market Movers

Market Movers is Sports Card Investor's card price app: sold comps, price charts, deals below comps and price alerts. It suits collectors and flippers buying and selling on price movement.

HobbyGM is a web app for eBay card stores. It connects to your store through eBay's official API, checks every listing each night, fixes titles and item specifics in bulk, and sends offers to watchers.

Side by side

“Not listed” means we didn't find the feature on the product's own site when we checked on October 14, 2026. If that's changed, tell us and we'll fix the page.

Where Market Movers is better

• Sold comps, price charts and alerts for any card you look up. HobbyGM's market pages only track its own index cards.
• Finding cards to buy below recent comps.

Where HobbyGM is better

• Bulk fixes to your own eBay listings: missing item specifics, and titles that leave out the parallel, grade or print run.
• Margin on each listing after eBay fees and shipping, and eBay traffic per listing, so you can see which cards get seen and not clicked.

Market Movers pricing

• Starter: $9.99/month, 25-card collection, 5 alerts
• Premium: $24.99/month, 250 cards, 20 alerts
• Unlimited: $49.99/month, unlimited cards and alerts

The page says paying yearly saves 17% and mentions a free trial without giving its length.

From Market Movers, checked October 14, 2026. Prices change; check before you subscribe.

HobbyGM pricing

Connecting your eBay store to HobbyGM is free, and the public tools are free without an account. HobbyGM hasn't published paid plans.

What Market Movers does

• Comps and price charts, found by search or by scanning a card. (source)
• Deals listed below recent comps, and price alerts. (source)

What HobbyGM does

• Checks every listing in your store each night: titles, item specifics, and cards with no watchers three weeks after listing. (how the checks work)
• Fills missing item specifics from the title and adds missing search terms (parallel, print run, grade, team) to titles, in bulk, with review before anything is pushed to eBay.
• Flags listings whose title and item specifics disagree: card number, season, print run, autograph, rookie, grade.
• Compares each card's price with other sellers' current listings of the same card, matched on number, parallel, grade and print run.
• Sends offers to watchers in bulk, or automatically each night by your rules, never below break-even.
• Shows each listing's net margin after eBay fees, shipping and supplies, and flags cards that lose money or would ship cheaper by Standard Envelope. (fee calculator)
• Reads per-listing traffic from eBay, so you can see which cards get seen and not clicked.
• Covers sports cards, Pokémon, Magic, Yu-Gi-Oh!, One Piece, Lorcana and non-sport cards.

HobbyGM doesn't scan or identify cards, create new listings, list on other marketplaces, or look up sold prices for your cards. It works on the eBay listings you already have, however you made them.

Sources

• Market Movers