HobbyGM vs Terapeak

eBay Seller Hub is eBay's own free seller dashboard, including Product Research (formerly Terapeak), which shows about three years of eBay sold data, and tools to bulk-edit listings and send offers. Every eBay seller has it, and it's the baseline any paid tool has to beat.

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 eBay Seller Hub is better

• Sold prices: Product Research has about three years of eBay sales. HobbyGM doesn't look up sold prices for your cards.
• It's free and built in, with nothing to connect.
• Creating listings, and everything else about running the account: orders, payments, advertising.

Where HobbyGM is better

• Reading each card's title like a card (year, set, number, parallel, grade) and filling the matching item specifics in bulk.
• Nightly checks across the whole store for contradictions, missing specifics and stale listings, ordered by money at stake.
• Comparing each listing with the same card for sale now, without searching card by card.
• Automatic offer rules that never go below your break-even after eBay fees and shipping.

eBay Seller Hub pricing

• Seller Hub and Product Research: Free

Some extras, such as Sourcing Insights and rule-based automatic offers, need an eBay Store subscription.

From eBay: Product Research (formerly Terapeak), 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 eBay Seller Hub does

• Product Research, formerly Terapeak, is free to all sellers and shows about three years of eBay sold data. (source)
• Product Research is in the eBay app as well as on desktop. (source)
• Send offers to watchers and buyers with the item in their cart, in bulk from Active Listings; rule-based automatic offers need a Store subscription. (source)
• Seller Hub covers listings, orders, marketing, performance, research and reports, with bulk create and revise. (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

• eBay: Product Research (formerly Terapeak)
• eBay Community: Product Research on mobile
• eBay Seller Center: offers to buyers
• eBay: Seller Hub