HobbyGM vs Sixbit

Sixbit is desktop software for eBay listing, inventory and orders, with Etsy support. It suits established sellers who want to run listings and orders from Windows software.

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 Sixbit is better

• Creating and managing listings, inventory and orders from desktop software.
• Shipping labels and automatic relisting.

Where HobbyGM is better

• Finding which listings need fixing, such as missing card item specifics or titles that contradict them, then filling the specifics in bulk. Sixbit batch-edits listings but describes no checks.
• Pricing against the same card listed now, and offers to watchers.
• Nothing to install: it runs on eBay's API overnight.

Sixbit pricing

• Home & Hobby: $29.99/month
• Small Business: $49.99/month, adds inventory tracking and shipping labels
• Enterprise: $99.99/month
• Enterprise Duo: $139.99/month
• Enterprise Max: $184.99/month

30-day free trial for new customers.

From Sixbit: pricing, 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 Sixbit does

• Lists to eBay US, UK, Canada and Australia, and to Etsy. (source)
• Batch editing and revising of listings on every plan. (source)
• Inventory tracking and shipping labels from Small Business; automatic relisting on Enterprise. (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

• Sixbit: pricing